Solid cosmetic care composition comprising at least one cavity

Abstract

The present invention relates to a solid cosmetic care composition of a keratin substance, in particular the skin and / or the lips, comprising at least one biological / cosmetic active agent, characterised in that said composition comprises at least one cavity such that the volume of the at least one cavity relative to the total volume of the solid composition is greater than the total volume of the solid composition. Said composition has a porosity greater than or equal to 20% by volume, and an associated production method.

Description

[0001] The present invention relates to a solid cosmetic composition for caring for keratin materials, more particularly to a solid cosmetic composition for caring for skin and / or lips.

[0002] Solid cosmetic compositions for caring for keratin substances are known which are in the form of sticks or dispersed (usually in water) powders.

[0003] However, such solid care compositions, which are usually anhydrous, are not completely satisfactory in terms of deposit uniformity, comfort, sensoriality and / or hydration. In fact, the deposit is usually greasy and / or sticky.

[0004] Moreover, in the case of sticks, their use involves repeated contact of the solid composition with the treated keratinous material, which is not very hygienic for obvious reasons. What is more, the sticks can be consumed by degradation and / or their breakage and / or disintegration before they are completely consumed, thus generating waste.

[0005] For dispersed powders, which are usually water-soluble or water-dispersible powders, it is usually difficult to add the right amount of water to achieve the desired final liquid composition. In addition, its dispersion in an aqueous medium is often perceived by the user as a deceptive experience, as the quality is not very good. Finally, such a procedure makes it difficult to have a fat (or oil) phase, and therefore a lipophilic active ingredient. This therefore explains, at least in part, why compositions of this type often have unsatisfactory sensory and efficacy properties.

[0006] Solid cosmetic care compositions for single-dose form are known. However, these compositions comprise a large amount of packaging, are at least partially disposable, and / or have not entirely satisfactory properties in terms of grip, ease of use, sensory properties, hydration and / or good sensation upon application.

[0007] The present invention aims to overcome the above-mentioned drawbacks by proposing a solid cosmetic care composition, more specifically in the form of a single dose, which guarantees good grip for the user, a direct and comfortable application, an economical packaging and allows the presence of a fatty (or oily) phase and therefore of a lipophilic active agent.

[0008] Composition

[0009] The present invention therefore relates to a solid cosmetic composition for the care of keratinous substances, more particularly the skin and / or the lips, comprising at least one cosmetic / biologically active agent, characterized in that it comprises at least one cavity so that the porosity of the composition is greater than or equal to 20% by volume, preferably greater than or equal to 30% by volume, better still greater than or equal to 40% by volume, more particularly greater than or equal to 50% by volume, more particularly greater than or equal to 60% by volume, more particularly greater than or equal to 70% by volume and most particularly greater than or equal to 80% by volume, relative to the total volume of the solid composition.

[0010] Thus, the composition according to the invention may maintain a similar size and / or volume to current solid care compositions, but differ in the presence of at least one cavity, such that the porosity of the composition is greater than or equal to 20% by volume relative to the total volume of the composition.

[0011] "Solid" as defined in the present invention means a composition that does not easily collapse under its own weight at ambient temperature and atmospheric pressure. Advantageously, it is intended to mean any composition that has a compressive strength greater than or equal to 20 g, preferably greater than or equal to 50 g, and most preferably greater than or equal to 100 g, at ambient temperature (20° C.-25° C.), after a cylindrical rotating probe with a diameter of 0.8 cm penetrates at a speed of 0.5 mm / s into a matrix of the composition with a thickness of 1 mm and withdraws said probe from the matrix of the composition at a speed of 0.5 mm / s; the compressive strength is measured using an analyzer such as the "LFRA Texture Analyzer" sold by STEVENS / MECHTRIC.

[0012] The composition according to the invention is not in the form of a paste. The composition according to the invention is not a pulverulent composition and is therefore not in the form of a powder. Finally, the composition according to the invention is not a porous solid resulting from the agglomeration of powders. On the other hand, the composition according to the invention may be an expanded composition and may therefore be in the form of a foam. According to a particular embodiment, the composition according to the invention is not an expanded composition and is therefore not in the form of a foam.

[0013] Preferably, the solid composition according to the present invention is not coated with a water-soluble coating.

[0014] "Porosity" as defined herein refers to all voids in a solid substance that can be filled with a fluid, in particular water, when the solid composition is in contact with an aqueous solution, for example water, such as tap water.

[0015] The "cavity" defined in the present invention refers to an empty space inside a solid that is directly connected to an external medium, such as Figures 1 to 3 and Figure 6The cavity shown. Therefore, the cavity can be indiscriminately referred to as an "orifice", "hole" or "hole". Advantageously, the cavity is through-going, that is, the cavity represents an empty space inside the solid and directly connected to the external medium on both sides of the solid.

[0016] Thus, the volume of the cavity in the solid composition according to the invention accounts for at least 20%, more particularly at least 30%, preferably at least 40%, more particularly at least 50%, even at least 60%, more particularly at least 70%, most particularly at least 80% of the total volume of the solid composition.

[0017] Advantageously, the solid composition according to the invention has a density between 0.2 and 0.8, preferably between 0.3 and 0.7 and more particularly between 0.4 and 0.6.

[0018] The total volume of the solid composition according to the present invention can be 0.125 cm 3 and 100cm 3 between 0.250cm 3 and 75cm 3 between, more particularly between 0.5 cm 3 and 50cm 3 between, preferably within 1cm 3 and 25cm 3 between, most especially between 2.5 cm 3 and 15cm 3 between.

[0019] The weight of the solid composition according to the invention may be between 0.025 g and 200 g, preferably between 0.25 g and 150 g, more particularly between 0.5 g and 100 g, better still between 1 g and 75 g, most particularly between 2.5 g and 50 g, even between 5 g and 25 g ("g" corresponds to the unit "gram").

[0020] Advantageously, the weight of the solid composition according to the invention may be between 0.25 g and 200 g, preferably between 0.50 g and 150 g, more particularly between 1 g and 100 g, better still between 2.5 g and 75 g, most particularly between 5 g and 50 g ("g" corresponds to the unit "gram").

[0021] According to a first preferred embodiment, the ratio between the volume of the cavity of the solid composition according to the invention and the total volume of the composition is between 0.05 and 0.9, preferably between 0.1 and 0.8, more particularly between 0.2 and 0.9, preferably between 0.2 and 0.8, better still between 0.2 and 0.7, even between 0.2 and 0.6.

[0022] "Total volume" refers to the volume resulting from the sum of the volume of the solid and the volume of the cavity.

[0023] In the framework of the present invention, the cavity can be considered as macroporosity, i.e. the minimum width or even diameter of the pores is greater than or equal to 0.5 mm, preferably greater than or equal to 0.75 mm, more particularly greater than or equal to 1 mm, even between 0.5 mm and 2 cm, most particularly between 1 mm and 2 cm, preferably between 2 mm and 1 cm, more particularly between 3 mm and 75 mm, better between 4 mm and 50 mm, most particularly between 5 mm and 25 mm. More particularly, the minimum width or even diameter of the pores is between 0.5 mm and 5 mm, preferably between 1 mm and 3 mm.

[0024] Therefore, the applicant pointed out that, at equal porosity, a stable solid composition is produced:

[0025] - easily in the presence of small cavities, e.g. cavities present in a solid matrix as described in US 8349341, the pores being a result of the introduction of gas during the manufacturing process, but

[0026] - This is much more difficult in the presence of macropores as contemplated in the present invention.

[0027] The presence of cavities in the contents and / or volume and / or size considered above allows obtaining solid compositions that require less raw materials while maintaining satisfactory gripping properties. Therefore, the solid composition according to the present invention is easy to place in a single dose form without loss or with less loss. This weight reduction also has the advantage of allowing less pollution and cheaper transportation. Therefore, the solid composition according to the present invention is ecologically and economically advantageous.

[0028] Furthermore, the inventors have observed that when the solid composition according to the invention is placed in the presence of an aqueous phase, unexpected effects occur in terms of texture and transformation effects. In fact, the inventors have observed that the solid composition according to the invention in contact with an aqueous phase exhibits faster transformation kinetics between the original solid state and the liquid state, such as, for example, a gel or cream, than a solid composition of the same size and volume but without any cavity. Without wishing to be bound by any theory, the inventors believe that the presence of a cavity in the solid composition facilitates the transition to a viscous liquid composition (for example, when the solid composition is mixed with the hands), or leads to an increase in the contact surface area with the aqueous phase (more particularly water), thereby allowing the solid composition to be better hydrated.

[0029] Therefore, the present invention can even adjust the speed of expansion and / or melting of the solid composition by adjusting the surface area formed under constant volume, by adjusting the percentage of porosity, and more specifically, by adjusting the shape and / or number and / or size of the cavities, and even the number and / or wall thickness of the cavities.

[0030] Advantageously, the size and / or volume of the cavity can be adjusted to store and / or react with the desired amount of water, thereby obtaining a final liquid composition with satisfactory / desirable properties, even optimized and / or uniform (i.e. between different single doses), for example in terms of viscosity, hydration, ease of spreading and / or conversion effect.

[0031] Thus, the composition according to the invention even makes it possible to obtain evanescent compositions, ie compositions which, upon contact with a sufficient amount of water, are readily transformed into liquid compositions, more particularly compositions in the form of gels or creams.

[0032] Finally, the inventors have observed that the porous structure of the solid composition according to the invention makes it possible to obtain a more uniform deposition on keratinous substances even without the aid of an application member.

[0033] Preferably, the composition according to the invention is a single-dose composition. This embodiment is particularly advantageous from a hygiene point of view, since it prevents repeated contact between the solid composition and the keratinous material. This embodiment also makes it easy for the user to easily customize the makeup effect that the user wants according to the user's mental state (mood), clothing style and / or time of day.

[0034] Therefore, the present invention also relates to a packaging comprising a plurality of solid compositions according to the invention, these compositions being present in single dose form with different active ingredients / cosmetic effects. Therefore, the present invention relates to a packaging comprising a plurality of solid compositions according to the invention, preferably in single dose form, said compositions comprising different cosmetics / bioactive agents and / or different amounts of cosmetics / bioactive agents. Therefore, the packaging has the advantage of ensuring easy customization of the care product for the user according to the mental state (mood), clothing style and / or time of day of the user.

[0035] Preferably, the composition according to the invention is a topical composition.The composition according to the invention is not an oral composition.

[0036] The solid composition according to the invention may have any shape, for example a sphere, an ellipsoid, a tetrahedron or a polygon, more particularly a parallelogram, preferably a rectangular parallelogram.

[0037] Preferably, in particular in order to provide good grip, the solid composition according to the invention has:

[0038] - a width or even a diameter of between 1 cm and 10 cm, preferably between 2 cm and 8 cm, more particularly between 3 cm and 6 cm, better still between 4 cm and 5 cm; and / or

[0039] - Height (or thickness): between 0.5 cm and 5 cm, preferably between 1 cm and 4 cm, more particularly between 2 cm and 3 cm.

[0040] The cavities of the solid composition according to the invention may have any shape, for example circular, rectangular, oval, triangular, polygonal, more particularly hexagonal, honeycomb, or in a paving shape (or cutout shape), for example a Voronoi diagram ( diagram), preferably in a honeycomb shape, such as Figure 3 and Figure 6 shown.

[0041] like Figure 2 As shown, the cavity of the solid composition according to the present invention may also represent the letters or logo of a brand or company.

[0042] The solid composition according to the invention comprises one or more identical or different cavities, preferably a plurality of identical or different cavities.

[0043] According to a first variant, the composition according to the invention comprises at least one cavity, more particularly a through cavity.

[0044] According to a second preferred variant, the composition according to the invention comprises a plurality of cavities, more particularly through-going cavities, such as Figure 3 and Figure 6 shown.

[0045] These cavities are advantageously through-going cavities along the axis xx′.

[0046] According to a particular embodiment, the composition according to the invention may comprise at least two chambers connected together. This embodiment is advantageous because it enhances the capillary phenomenon when in contact with water, thus improving the above-mentioned technical effects.

[0047] Advantageously, the solid composition according to the invention comprises a plurality of cavities in a honeycomb structure, such as Figure 3 The honeycomb shape is particularly advantageous because it allows the manufacture of solid compositions having a very advantageous "cavity volume / total composition volume" ratio, more particularly a ratio greater than or equal to 0.5, or even greater than or equal to 0.75, without affecting the grip of the composition and the robustness and / or storage of mechanical stresses that may be applied thereto. In other words, the honeycomb structure is an excellent compromise between cavity volume and mechanical strength.

[0048] Advantageously, the cavity of the solid composition according to the invention comprises a wall having a thickness between 10 μm and 1500 μm, preferably between 20 μm and 1000 μm, more particularly between 30 μm and 750 μm, most particularly between 50 μm and 500 μm, even between 100 μm and 400 μm. More specifically, the cavity of the solid composition according to the invention comprises a wall having a thickness between 250 μm and 500 μm.

[0049] Advantageously, the solid composition according to the invention comprises a plurality of cavities having a honeycomb structure comprising walls having a thickness between 10 μm and 600 μm, preferably between 20 μm and 500 μm, more particularly between 30 μm and 400 μm, most particularly between 50 μm and 300 μm, or even between 100 μm and 200 μm.

[0050] According to a particular embodiment, the solid composition according to the invention, in particular when it adopts a honeycomb structure as described above, can comprise a plurality of parts, more particularly polygonal, each part defining a breakable perimeter allowing at least one part to be separated from the rest of the solid composition. Thus, according to this embodiment, each part of the solid composition corresponds to a single dose.

[0051] According to one particular embodiment, the composition according to the invention may also comprise an additional pattern different from the cavities, said pattern being able to be produced, for example, by embossing.

[0052] According to a first variant, the composition according to the invention is anhydrous. "Anhydrous" as defined herein refers to a composition which, before any contact with water, contains less than 5% by weight, preferably less than 1% by weight and more particularly less than 0.5% by weight of water relative to the total weight of the composition.

[0053] According to a second variant, the composition according to the invention comprises a continuous fatty phase and a dispersed aqueous phase. Thus, the composition according to the invention is in the form of an oil phase (or fatty phase) which additionally comprises at least one dispersed aqueous phase, for example in encapsulated form, for example in the form of matrix spheres (or beads or globules) or in the form of core / shell (or capsules), for example in the form of capsules as described in WO2010 / 063937.

[0054] Therefore, the solid composition according to the invention may also comprise at least one aqueous phase dispersed in the solid composition, preferably in encapsulated form.

[0055] According to one embodiment, the percentage by weight of water in the aqueous phase may be between 0.5% and 50% by weight, preferably between 1% and 40% by weight, more particularly between 2.5% and 30% by weight, better still between 5% and 20% by weight, relative to the total weight of the composition.

[0056] The solid nature of the composition according to the invention may be based on a phase consisting predominantly (or even entirely) of a fatty phase comprising at least one lipophilic gelling agent (hereinafter also called “solid fatty phase”).

[0057] Preferably, the solid character of the composition according to the invention is based on the presence of a fatty phase comprising at least one lipophilic gelling agent.

[0058] Fat phase

[0059] The melting point of the dispersed fatty phase of the composition according to the invention is between 50 and 100°C, preferably between 60 and 90°C.

[0060] The melting point of the fat phase can be measured using a differential scanning calorimeter (DSC), for example the one sold under the name "DSC Q2000" by TA Instruments. The sample preparation and measurement protocol is as follows: 5 mg of the sample to be measured are previously heated to 80°C, sampled with a scraper that is also heated under magnetic stirring and placed in a sealed aluminum capsule or crucible. To ensure the reproducibility of the results, the test is carried out twice. The measurement is carried out on the calorimeter mentioned above. The furnace is purged with nitrogen. Cooling is provided by an RCS 90 heat exchanger. The sample is then subjected to the following treatment: the sample is first heated to 20°C, then subjected to a first temperature increase from 20°C to 130°C at a heating rate of 5°C / min, then cooled from 130°C to -80°C at a cooling rate of 5°C / min, and finally subjected to a second temperature increase ranging from -80°C to 130°C at a heating rate of 5°C / min. During the second heating process, the difference in power absorbed by the empty crucible and the crucible containing the sample is measured as a function of temperature. The melting point of the compound is the temperature corresponding to the peak of the curve representing the difference in power absorbed as a function of temperature. The melting end temperature corresponds to the temperature at which 95% of the sample has melted.

[0061] Lipophilic gelling agent

[0062] The composition according to the invention advantageously comprises at least one lipophilic gelling agent.

[0063] The lipophilic gelling agent according to the invention may be chosen from: organic or inorganic, polymeric or molecular lipophilic gelling agents; fats that are solid at ambient temperature and pressure; and mixtures thereof.

[0064] The fatty substance which is solid at ambient temperature and pressure is preferably chosen from at least one wax, at least one pasty fatty substance, at least one butter and mixtures thereof.

[0065] Advantageously, the lipophilic gelling agent is a thermosensitive gelling agent, i.e. a gelling agent that reacts to heat, in particular a gelling agent that is solid at ambient temperature and liquid at a temperature greater than 50° C., preferably greater than 60° C., better still greater than 70° C. Preferably, the thermosensitive lipophilic gelling agent according to the invention has a melting point between 50° C. and 130° C., preferably between 60° C. and 120° C.

[0066] Lipophilic gelling agents include, for example, those described in WO2021 / 234135.

[0067] According to a particularly preferred embodiment, the lipophilic gelling agent is chosen in particular from castor oil / IPDI copolymers (and) caprylic / capric triglycerides sold under the name Estogel M by PolymerExpert, in particular hydrogenated castor oil / sebacic acid copolymers sold under the names Estogel-Green (or Estogel G) and Estogel Green 40, respectively, by PolymerExpert, and mixtures thereof, in particular OILKEMIA 500 by the company Lubrizol. TM Caprylic / capric triglycerides (and) polyurethane-79 sold under the name 5S Polymer, particularly by Elementis Specialties under the name Trihydroxystearate sold under the name R, and mixtures thereof, more preferably castor oil / IPDI copolymer (and) caprylic / capric triglyceride.

[0068] More specifically, the composition according to the invention may comprise from 10% to 90% by weight of lipophilic gelling agent, preferably from 20% to 80% by weight of lipophilic gelling agent, more particularly from 30% to 70% by weight of lipophilic gelling agent, better still from 40% to 60% by weight of lipophilic gelling agent relative to the total weight of the composition.

[0069] Oil

[0070] The composition according to the invention may comprise at least one oil. "Oil" means a fat that is liquid at ambient temperature and atmospheric pressure.

[0071] As oils according to the invention, mention may be made, for example, of:

[0072] - hydrocarbon oils of vegetable origin, as described below;

[0073] - hydrocarbon oils of animal origin, such as perhydrosqualene and squalane;

[0074] - synthetic esters and ethers, in particular of fatty acids, such as oils of the formula R1COOR2 and R1OR2, wherein R1 represents a C8 to C 29 The residue of a fatty acid, R2 represents a C3 to C30 branched or unbranched hydrocarbon chain, such as purcellinoil, isononyl isononanoate, isodecyl neopentanoate, isostearyl neopentanoate, isopropyl myristate, ethyl-2-hexyl palmitate, octyl-2-dodecyl stearate, octyl-2-dodecyl erucate, isostearyl isostearate; hydroxy esters of fatty alcohols, such as isostearyl lactate, octyl hydroxystearate, octyldodecyl hydroxystearate, diisostearate malate, triisocetyl citrate, heptanoate, octanoate, decanoate; polyol esters, such as propylene glycol dioctanoate, neopentyl glycol diheptanoate and diethylene glycol diisononanoate; and pentaerythritol esters, such as pentaerythritol tetrabehenate (DUB-PTB) or pentaerythritol tetraisostearate (Prisorine 3631);

[0075] - linear or branched hydrocarbons of mineral or synthetic origin, such as volatile or non-volatile paraffin oils and their derivatives, petrolatum, polydecene, hydrogenated polyisobutene, such as Parleam oil;

[0076] - silicone oils, such as volatile or non-volatile polymethylsiloxanes (PDMS) with linear or cyclic siloxane chains, which are liquid or pasty at room temperature, in particular cyclopolydimethylsiloxanes (cyclomethicones), such as cyclohexylsiloxane and cyclopentylsiloxane; polydimethylsiloxanes (or dimethylsiloxanes) containing alkyl, alkoxy or phenyl groups in the middle or at the ends of the siloxane chain, these groups containing 2 to 24 carbon atoms; phenyl siloxanes, such as phenyl trimethylsiloxane, phenyl dimethylsiloxane, phenyl trimethylsiloxydiphenylsiloxane, diphenyl dimethylsiloxane, diphenyl methyl diphenyl trisiloxane, 2-phenyl ethyl trimethylsiloxysilicate and polymethylphenyl siloxane;

[0077] - fatty alcohols having 8 to 26 carbon atoms, such as cetyl alcohol, stearyl alcohol and mixtures thereof (cetearyl alcohol), or octyldodecanol;

[0078] - partially hydrocarbon- and / or silicone-based fluorinated oils, as described in document JP-A-2-295912;

[0079] - and mixtures thereof.

[0080] As the oil, for example, the oil described in WO2021 / 234135 can be mentioned.

[0081] The composition according to the invention preferably comprises at least one vegetable oil, such as coconut shell oil, coconut oil, olive oil, sweet almond oil, castor oil, babassu oil and mixtures thereof.

[0082] More specifically, the composition according to the invention may comprise from 10% to 90% by weight of oil, preferably from 20% to 80% by weight of oil, more particularly from 30% to 70% by weight of oil and better still from 40% to 60% by weight of oil relative to the total weight of the composition.

[0083] The composition according to the invention may comprise at least one lipophilic gelling agent, preferably a thermosensitive lipophilic gelling agent, at least one oil and mixtures thereof.

[0084] Biological / cosmetic active agents

[0085] The solid composition according to the invention, in particular the fatty phase and / or the dispersed aqueous phase when present, comprises at least one biologically / cosmetically active agent.

[0086] As biological / cosmetic active agents according to the invention, mention may be made of moisturizers, vitamins, scarring agents, anti-wrinkle or anti-aging agents, depigmenting agents, desquamating agents, antioxidants, active agents which stimulate the synthesis of dermal and / or epidermal macromolecules, skin relaxant agents, antiperspirants, soothing agents and / or anti-aging agents and mixtures thereof.

[0087] Anti-wrinkle or anti-aging agents

[0088] As representatives of anti-wrinkle or anti-aging agents that can be used in the present invention, mention may be made more particularly of adenosine; retinol and its derivatives; ascorbic acid and its derivatives, such as magnesium ascorbyl phosphate and ascorbyl glucoside; tocopherol and its derivatives, such as tocopherol acetate; nicotinic acid and its precursors, such as nicotinamide; ubiquinone; glutathione and its precursors, such as L-2-oxothiazolidine-4-carboxylic acid; C-glycosides and their derivatives, as described in particular below; plant extracts, in particular Crithmum and olive leaf extracts, and plant-based proteins and their hydrolysates, such as rice or soy protein hydrolysates; or Vigna oleracea sold by Cognis under the references Vitoptine LS9529 and Vit-A-Like LS9737. aconitifolia) seed extracts; algae extracts, especially kelp extracts; bacterial extracts; sapogenins, such as diosgenin and extracts of Dioscorea, especially extracts of wild yam, which contain the same sapogenins; alpha-hydroxy acids; beta-hydroxy acids, such as salicylic acid and n-octanoyl-5-salicylic acid; oligopeptides and pseudodipeptides and acylated derivatives thereof, more particularly {2-[acetyl-(3-trifluoromethyl-phenyl)-amino]-3-methylbutyrylamino}acetic acid and lipopeptides sold under the trade names Biopeptide CL, Matrixyl 500 and Matrixyl 3000 by SEDERMA; lycopene; manganese and magnesium salts, more particularly gluconate; rye seed extract under the trade name Coheliss from Silab; Centella asiatica leaf extract; oil or water extracts of vanilla fruit, extracts of vanilla flowers; and mixtures thereof.

[0089] Wetting agent or moisturizer

[0090] Moisturizers or humectants include, in particular, glycerol; diglycerol; glycols such as sorbitol; betaine; urea and its derivatives, in particular those sold under the tradename Monosaccharides such as mannose, AHA, BHA, beta-glucan, especially sodium carboxymethyl beta-glucan from Mibelle-AG-Biochemistry; polyoxybutylene, polyoxyethylene or polyoxypropylene glycerol ethers such as WILBRITE from NOF Musk rose oil sold by Nestle; marine collagen and chondroitin sulfate (Ateocollagen) beads sold by Engelhard Lyon as Marine Filler Beads; niacinamide; polymethacrylate glyceryl from Sederma under the trade name MS; Ashahi Kasei Chemicals is marketed under the trade name Trimethylglycine sold; mother-of-pearl extracts containing conchiolin, especially Maruzen (Japan) sold under the trade name Pearl mother-of-pearl extracts sold as such; plant extracts, such as extracts of plants of the Fagaceae family or camellia oil or aqueous extracts, more particularly extracts of the alba plena variety; hydrolyzed hazelnut protein; polyyanthes tuberosa polysaccharides; argan oil; homopolymers and copolymers of 2-methacryloyloxyethylphosphocholine acid, such as Lipidure HM and Lipidure PBM from NOF; sugars, such as glucose, fructose, mannose or trehalose; glycosaminoglycanes and their derivatives, such as hyaluronic acid, sodium hyaluronate and acetylated hyaluronic acid, more particularly the hyaluronic acid beads sold by Engelhard Lyon; panthenol; allantoin; aloe vera; free amino acids and their derivatives; glucosamine; citric acid; ceramides; and mixtures thereof.

[0091] Exfoliating agent

[0092] As exfoliating agents, mention may be made of beta-hydroxy acids, more particularly salicylic acid and its derivatives (except n-octanoyl-5-salicylic acid); urea; glycolic acid, citric acid, lactic acid, tartaric acid, malic acid or mandelic acid; 4-(2-hydroxyethyl)piperazine-1-propanesulfonic acid (HEPES); extract of Saphora japonica; honey; N-acetylglucosamine; sodium methylglycine diacetate, alpha-hydroxy acids (AHA), beta-hydroxy acids (BHA) and mixtures thereof.

[0093] Antioxidants

[0094] As antioxidants, mention may be made more particularly of tocopherol and its esters, more particularly tocopherol acetate; EDTA, ascorbic acid and its derivatives, more particularly magnesium ascorbyl phosphate and ascorbyl glucoside; chelating agents such as BHT, BHA, N,N′-bis(3,4,5-trimethoxybenzyl)ethylenediamine and its salts, and mixtures thereof.

[0095] Skin relaxation Agent or skin relaxers

[0096] As dermolaterics or skin relaxants, mention may most particularly be made of manganese gluconate, wild yams, sea fennel, glycine, alverine and mixtures thereof.

[0097] Active agents that stimulate the synthesis and / or prevent the degradation of dermal and / or epidermal macromolecules

[0098] As active agents which stimulate the synthesis of dermal and / or epidermal macromolecules and / or prevent their degradation, mention may be made of peptides extracted from plants, for example those sold by BASF Beauty Care Solutions under the trade name Soybean hydrolysate and malt extract sold by BASF BCS malt extracts sold under the name of ; rice peptides, such as Nutripeptide from SILAB, or rice peptide extracts, such as Pentapharm DSM Methylsilanol mannuronate, such as Algisium sold by Exsymol Vaccinium myrtillus extract, as described in application FR-A-2 814 950; Lupinus officinalis extract (available from SILAB under the trade name Sale), verbena plant hydrolyzate, and mixtures thereof.

[0099] Soothing Agents

[0100] As soothing agents, mention may be made of dipotassium glycyrrhizinate or acetyl-1-dipeptide ketoester under the name Calmosensine from SEDERMA.

[0101] Decolorizing agent

[0102] As depigmenting agents, mention may be made of ceramides, vitamin C and its derivatives, in particular Vit CG, CP and 3-O-ethyl ascorbyl palmitate, α-arbutin and β-arbutin, ferulic acid, kojic acid, resorcinol and its derivatives, more particularly 4-butylresorcinol, tranexamic acid and its derivatives, calcium D pantheteine ​​sulfonate, lipoic acid, ellagic acid, vitamin B3, phenethylresorcinol, such as Symwhite from Symrise Kiwi fruit (Actinidia chinensis) fruit water sold by Gattefosse, peony root extract, such as IchimaruPharmacos as Botanpi Liquid Peony root extract sold under the name of , Licorice (Glycyrrhiza glabra) extract, Brown sugar (Saccharum officinarum) extract, such as molasses extract sold as Molasses Liquid by Taiyo Kagaku, a mixture of undecylenic acid and undecylenylphenylalanine, such as Sepiwhite from Seppic

[0103]

[0104] Vitamin B3, B5, B6, B8, C, E or PP, niacin, carotenoids, polyphenols, and minerals such as zinc, calcium, magnesium, etc. may also be mentioned.

[0105] More specifically, antioxidant complexes may be used comprising vitamins C and E and at least one carotenoid, in particular a carotenoid selected from beta-carotene, lycopene, astaxanthin, zeaxanthin and lutein, flavonoids such as catechins, hesperidin, proanthocyanidins and anthocyanidins.

[0106] It can also be at least one prebiotic or a mixture of prebiotics. More specifically, the prebiotic can be selected from oligosaccharides, produced by glucose, galactose, xylose, maltose, sucrose, lactose, starch, xylan, hemicellulose, inulin, gum (such as gum arabic) or a mixture thereof. More specifically, the oligosaccharide includes at least one oligofructose. More specifically, this prebiotic can include a mixture of oligofructose and inulin.

[0107] More specifically, the solid composition according to the invention comprises between 0.0001% and 60% by weight of biological / cosmetic active agent, preferably between 0.001% and 50% by weight of biological / cosmetic active agent, more particularly between 0.01% and 40% by weight of biological / cosmetic active agent, better still between 0.1% and 35% by weight of biological / cosmetic active agent and preferably between 1% and 25% by weight of biological / cosmetic active agent relative to the total weight of the composition.

[0108] Additional compounds

[0109] The composition according to the invention, and more particularly the fatty phase, and even the dispersed aqueous phase when present, may also comprise at least one additional compound different from the lipophilic gelling agent, the oil and the biological / cosmetic active agent described above.

[0110] The composition according to the present invention may also include powders; flakes; colorants, in particular selected from water-soluble or water-insoluble, fat-soluble or non-fat-soluble, organic or inorganic colorants, materials with optical effects, liquid crystals and mixtures thereof; granules insoluble in the fat phase; odorants; preservatives; moisturizers; fillers with a blurring effect; UV filters; effervescent agents; disintegrants (such as cross-linked carboxymethyl cellulose, carboxymethyl cellulose, etc.); diluents; disintegration promoters; stabilizers; chelating agents; modifiers selected from texturing agents (or gelling agents, more specifically hydrophilic gelling agents), agents for adjusting pH, agents for adjusting osmotic force and / or refractive index regulators, etc. ... or any commonly used cosmetic additives; and mixtures thereof.

[0111] As defined in the present invention, "fat-phase insoluble granules" refer to the group consisting of pigments, ceramics, polymers (especially acrylic polymers) and mixtures thereof.

[0112] As the hydrophilic gelling agent, there may be mentioned, for example, the hydrophilic gelling agents described in FR3041251.

[0113] As described below, the composition according to the invention may also include at least one solvent that is susceptible to complete or partial evaporation during the manufacturing process. As solvent, for example, non-polar or slightly polar organic solvents such as cyclohexane, THF (tetrahydrofuran) and mixtures thereof may be mentioned.

[0114] Of course, a person skilled in the art will ensure that the above-mentioned raw materials, ingredients, active agents and / or additional compounds and / or their amounts are chosen so that the advantageous properties of the composition according to the invention are not altered or substantially altered by the mixture envisaged. Furthermore, a person skilled in the art will ensure that the above-mentioned raw materials, ingredients, active agents and / or additional compounds are chosen according to the aqueous or fatty properties of the phases under consideration and / or with regard to the method for making the composition. Such adjustments fall within the general knowledge of a person skilled in the art.

[0115] The solid nature of the composition according to the invention advantageously allows for the provision of conventional packaging.In fact, the packaging of the solid composition according to the invention may for example be limited to a simple packaging in for example paper.

[0116] Advantageously, the solid composition according to the invention does not consist of a fibrous lattice.

[0117] Preferably, the composition according to the invention does not comprise any surfactant.

[0118] Preferably, the solid composition according to the present invention does not include one of polyvinyl alcohol (PVA or PVOH), polyacrylates, copolymers of acrylic acid and methacrylic acid, polyvinylidene fluoride (PVDF), polymethyl methacrylate (PMMA), polyvinyl pyrrolidone, polyoxyalkylenes, polyacrylonitrile (PES or PAN), polymethacrylate, polyethylene terephthalate, polyethylene, polypropylene, nylon, hyaluronic acid, starch and its derivatives, pullulan, gelatin, cellulose (e.g. rayon), hydroxypropyl methylcellulose, methylcellulose, carboxymethylcellulose, cotton and mixtures thereof.

[0119] The composition according to the invention does not comprise (or rely on) a water-soluble solid carrier, such as a hydrogel, more particularly based on starch (suitably destructured), and / or poloxamer 407.

[0120] Manufacturing method

[0121] The composition according to the invention is obtained by any method known to a person skilled in the art as being suitable for the manufacture of solid compositions, with the necessary adjustments being made to ensure the formation of cavities so as to meet the desired porosity criteria.

[0122] Preferably, the process for producing a solid composition according to the invention does not comprise a step of aeration / injection of a gas (for example air) followed, where appropriate, by a step of shaping and drying.

[0123] Method 1

[0124] According to a first variant, the method for manufacturing the composition according to the invention comprises at least the steps consisting of:

[0125] (i) a composition having a obtainable liquid or semi-liquid form;

[0126] (ii) casting the composition in a mold and drying until a solid composition is obtained,

[0127] (iii) cutting the solid composition into a desired shape, and

[0128] (iv) forming a cavity to obtain a solid composition according to the present invention.

[0129] Step (i) is advantageously carried out under hot conditions.

[0130] Advantageously, steps (iii) and (iv) are performed simultaneously.

[0131] Advantageously, steps (ii), (iii) and (iv) are carried out simultaneously, in which case the mould has a shape suitable for ensuring the formation of the cavity.

[0132] Step (iv) is advantageously carried out by means of a clay cutter.

[0133] The advantage of method 1 is that the waste obtained at the end of step (iv) can be recycled in a subsequent manufacturing process. In fact, in the subsequent to steps (i) and / or (ii) of method 1, the cuttings can be heated again and added again.

[0134] Method 2

[0135] According to a second variant, the method for manufacturing the composition according to the invention is an extrusion method.

[0136] This manufacturing method according to the present invention comprises at least the steps consisting of:

[0137] (a) a composition in liquid or semi-liquid form;

[0138] (b) passing the composition of step (a) through an extrusion device equipped with a die (or extrusion grating) having a shape suitable for forming a solid rod, and

[0139] (c) cutting the rods obtained in step (b) to obtain a solid composition according to the present invention.

[0140] For obvious reasons, step (b) is carried out at a temperature suitable for obtaining a composition having sufficient viscosity to easily retain the given shape of the mould.

[0141] For obvious reasons, the die shape of the extrusion device is also adapted to form the cavity.

[0142] Advantageously, step (b) is carried out at a temperature below ambient temperature, for example at a temperature lower than or equal to 15°C, or even lower than or equal to 10°C.

[0143] In step (b), the extrusion apparatus comprises a die having a shape suitable for forming a cavity and a desired porosity at the solid rod.

[0144] As an example, the extrusion method according to the present invention comprises Figure 4 The mold shown.

[0145] Step (c) may be performed using a knife or wire, such as a butter cutting wire.

[0146] Preferably, steps (b) and (c) are performed simultaneously.

[0147] Preferably, the method for manufacturing the composition according to the invention is the extrusion method 2 described above.

[0148] According to a particular embodiment applicable to the above-mentioned methods 1 and 2, step (i) / (a) consists in having a fluid composition which may include at least one solvent susceptible to complete or partial evaporation during step (ii) / (b) or even during the addition of steps (iii) and / or (iv) / (c).

[0149] As solvents, there may be mentioned, for example, nonpolar or slightly polar organic solvents such as cyclohexane, THF (tetrahydrofuran) and mixtures thereof.

[0150] In the above methods 1 and 2, when the composition comprises at least one fat phase containing at least one lipophilic gelling agent, step (i) / (a) may require heating the composition to a temperature higher than the highest melting point of the lipophilic gelling agent present in the composition.

[0151] According to a particular embodiment, the extrusion method 2 can be performed by 3D printing technology.

[0152] use

[0153] The composition according to the invention is used for caring for keratin substances, more particularly for caring for the skin and / or the lips.

[0154] More specifically, depending on whether the solid composition according to the invention is applied directly to the keratinous material or needs to be mixed with an aqueous medium beforehand, the composition according to the invention can be, for example, creams, lotions, serums and gels for skin (hands, face, feet, etc.), hair dye products (hair dyes and bleaches), hair care products (lotions, creams, oils), styling products (lotions, hair sprays, lighteners), shaving products (soaps, foams, lotions, etc.), products for application to the lips, products for whitening the skin, anti-wrinkle products. More specifically, the cosmetic composition of the invention can be an anti-aging serum, a youth serum or a moisturizing serum.

[0155] Advantageously, the solid composition according to the invention is not in the form of a mask.

[0156] The solid composition according to the invention is not a composition for cosmetic application solely to keratinous substances.On the other hand, the solid composition according to the invention may be a BB cream or a CC cream and therefore also comprises at least one pigment.

[0157] According to a first embodiment, more particularly when the composition according to the invention is of single-dose type, the solid composition according to the invention is intended to be in direct contact with the keratin substances.

[0158] According to a second embodiment, the solid composition according to the invention is intended to be brought into contact with an aqueous phase, more particularly with water, before, simultaneously with and / or after its application to the keratinous materials to be treated. When the composition according to the invention is not of the single-dose type, it is brought into contact with water only during the first use and presupposes that the "solid composition / water" mixture is packaged in a suitable container. For obvious reasons, it requires a solid composition of suitable formulation and a sufficient amount of water to ensure the transition from the solid composition to a liquid composition, for example in gel form. Therefore, it is also necessary to have at least one preservative in the solid composition to ensure good preservation over time of the liquid composition thus formed.

[0159] Finally, the invention also relates to a non-therapeutic cosmetic treatment method for the care of keratinous materials, more particularly the care of the skin and / or the lips, said method comprising at least one step of applying to said keratinous materials at least one composition as described above.

[0160] According to a particular embodiment, the invention relates to a product comprising or derived from the contact between at least one first solid composition and at least one second liquid composition as described above.

[0161] First solid composition

[0162] The first composition as defined in the present invention may also be referred to as a "first solid composition" or a "solid composition", and corresponds to the solid composition as described above.

[0163] Second liquid composition

[0164] The second composition as defined in the present invention may also be referred to as a "second liquid composition" or a "liquid composition".

[0165] According to a first variant, the second composition is aqueous.

[0166] According to a second variant, the second composition is anhydrous.

[0167] According to a third variant, the second composition is an emulsion. The emulsion may be a direct emulsion (ie oil-in-water), an inverse emulsion (ie water-in-oil) or a multiple emulsion, more specifically a double emulsion (ie water-in-oil-in-water, oil-in-water-in-oil or oil-in-oil-in-water).

[0168] According to a particular embodiment, the second composition is a stable emulsion, preferably a direct emulsion highly concentrated in the dispersed phase, in particular a HIPE (ie “High Internal Phase Emulsion”) or an Apollo emulsion.

[0169] The second composition according to the invention is not in solid form at ambient temperature and pressure, ie it flows readily under its own weight.

[0170] The second composition according to the invention is in the form of a liquid, preferably a gel.

[0171] When in emulsion form, the viscosity of the second composition, or at least the viscosity of its phase, can vary significantly, which makes it possible to obtain different textures. The viscosity is measured at ambient temperature and ambient pressure according to the method described in WO2017 / 046305.

[0172] For obvious reasons, the viscosity of the second composition is adjusted to facilitate removal / application of the product according to the invention.

[0173] According to one embodiment, according to the above method, the second composition advantageously has a viscosity measured at 25° C. of 5000 MPa·s to 500000 MPa·s, preferably 10000 MPa·s to 300000 MPa·s, better still 25000 MPa·s to 100000 MPa·s, more particularly 50000 MPa·s to 75000 MPa·s.

[0174] Preferably, the second composition can reduce the firmness of the first composition. More specifically, the second composition can advantageously include at least one starting material that tends to reduce the firmness of the first composition. The advantage of this embodiment is that it can change the solid texture of the first composition into a softer texture. Therefore, it can be called a "conversion effect".

[0175] The product according to the invention may advantageously comprise a “first composition / second composition” weight ratio comprised between 0.01 and 10, preferably between 0.1 and 5, better still between 0.5 and 1.

[0176] According to a particular embodiment, the first composition may comprise a high content of biological / cosmetic active agents, as described below. Thus, the first composition may be considered a "synergist".

[0177] In view of the above, the product according to the present invention is a ready-to-use product, ie when the product is used for the first time, the user will bring the first composition into contact with the second composition.

[0178] Therefore, the present invention also relates to a kit comprising:

[0179] - at least one first solid composition as described above;

[0180] - at least one second liquid composition as described above; and

[0181] -Optionally at least one container.

[0182] A container may be referred to indiscriminately as a "container", "packaging" or "primary packaging".

[0183] The invention also relates to the use of the above-described kit for obtaining a product according to the invention.

[0184] Preferably, the kit according to the invention may also comprise at least one application / administration mechanism.

[0185] In the case of products for cosmetic use, the kit according to the invention may also comprise at least one member for application to keratinous materials, for example chosen from the group formed by a scraper, a brush, a feather or a sponge.

[0186] According to particular variants, the kit may comprise a plurality of identical or different first compositions and / or a plurality of identical or different second compositions, and / or at least one application mechanism.

[0187] Therefore, the present invention also relates to a kit comprising a plurality of first compositions in single-dose form, said first compositions comprising different cosmetic / biologically active agents and / or different amounts of cosmetic / biologically active agents.

[0188] Such a kit according to the invention thus advantageously allows the user to easily adapt the desired effect.

[0189] In the case of cosmetic products, this particular embodiment allows the user to determine the desired cosmetic effect, in particular according to his / her mental state (mood), his / her clothing style and / or the time of day.

[0190] BRIEF DESCRIPTION OF THE DRAWINGS

[0191] Figure 1 A composition according to the invention is shown having a parallelepiped shape with a cylindrical cavity. A is a side view and B is a top view.

[0192] Figure 2 An oval-shaped composition according to the present invention is shown with a cavity represented by the word "SOAP" (top view).

[0193] Figure 3 A composition according to the invention having honeycomb cavities is shown (top view).

[0194] Figure 4 A mold for use in the method of the present invention is shown.

[0195] Figure 5 A comparison die is shown.

[0196] Figure 6 Other examples of solid compositions according to the present invention are shown. Example

[0197] Example 1 - Comparative Study

[0198] Step 1 - Manufacturing :

[0199]

[0200]

[0201] * Appropriate amount

[0202] - Add the ingredients of phase A to a container and heat the mixture at 100°C with stirring until it is homogeneous;

[0203] - Cool to 80°C and add phase B ingredients while stirring until uniform;

[0204] Step 2 - Extrusion :

[0205] - injecting the mixture obtained in step 1 into the provided extruder, which in the first case is equipped with Figure 4 The die according to the invention shown in the second case is equipped with an extruder as Figure 5 Comparative die shown;

[0206] At the exit of the die, the extruded rods were cut respectively to obtain the weights and volumes stated in Table 1 below.

[0207] - respectively obtain the honeycomb structure according to the present invention (Test 1, such as Figure 6 The present invention provides a single dose solid care composition in the form of a solid composition having the same general shape as Trial 1 but without a cavity (Soap 2 and Soap 3) and a single dose solid care composition in the form of a solid composition having the same general shape as Trial 1 but without a cavity.

[0208]

[0209] Step 3 - Application :

[0210] Step 3 was conducted in a group of 18 women aged between 22 and 47 years old (hereinafter referred to as "testers"), who were then divided into three groups, each consisting of 6 women (Group A, Group B, and Group C).

[0211] For each group, the test subjects applied the test composition to the facial skin.

[0212] Groups A, B, and C used Trial 1, Trial 2, and Trial 3, respectively, but the order was different each time.

[0213] During step 3, the testers evaluated the performance of Test 1, Test 2 and Test 3 based on (i) gripping ability, (ii) uniformity of applied deposit, (iii) ease of use and (iv) condition of the composition after use.

[0214] Scoring Criteria :

[0215] Scoring Criteria 0 1 2 Grabbing ability Satisfactory average value Difference Uniformity of sediment Satisfactory average value Difference Ease of use Satisfactory average value Difference Condition of the composition after use disappear completely Some residue Maintaining the overall structure

[0216] The following table lists the mean results obtained for groups A, B and C, noting that the trends observed among the three groups are the same.

[0217]

[0218] By comparing Test 2 and Test 3, it was observed that when the size was too small, the gripping was poor and the handling was difficult, and when the product was too large, it was impossible to consume it completely in a single dose, which would result in a lot of losses.

[0219] Furthermore, Trial 2 and Trial 3 had average characteristics in terms of deposit uniformity and ease of use.

[0220] Test 1 according to the invention can combine the advantages of Comparative Tests 2 and 3 without their disadvantages.

[0221] Thanks to the presence of a cavity in the contents under consideration, the composition according to the invention makes it possible to obtain a solid care composition which combines the ability to produce a uniform deposit with less material, while producing less losses, and has uniformity and satisfactory ease of use without affecting the properties related to gripping.

[0222] Therefore, the solid composition according to the invention consumes less raw materials and is therefore ecologically and economically advantageous.

[0223] Example 2 - Product / Kit with Vitamin C Boosters

[0224] According to the following table, a first solid composition is obtained, which is identical in form to that described in Experiment 1 above.

[0225]

[0226] The second liquid composition can be obtained according to the following table.

[0227]

[0228] Preparation scheme of the second composition:

[0229] First, xanthan gum and hyaluronic acid were dispersed in glycols (glycerol and propylene glycol) by stirring with a paddle stirrer. Then the oligomeric gel was added and stirring continued for about 30 minutes. Finally, water and ethanol were added and the mixture was mixed for about 2 hours with a paddle stirrer.

[0230] The second composition thus obtained was transparent.

[0231] use:

[0232] Starting from the kit according to the invention, the first composition is mixed extemporaneously with about 500 mg of the second composition in order to obtain the product according to the invention.

[0233] It is observed that the second composition can reduce the firmness of the first composition. More specifically, the second composition can change the solid texture of the first composition into a soft texture that is easy to apply and very fresh and comfortable.

Claims

1. A solid cosmetic care composition for keratinous substances, more particularly the skin and / or the lips, comprising at least one biological / cosmetic active agent, characterized in that The composition includes at least one cavity such that the porosity of the composition is greater than or equal to 20 volume % relative to the total volume of the solid composition.

2. The solid composition according to claim 1, wherein the porosity is greater than or equal to 30% by volume, preferably greater than or equal to 40% by volume, more particularly greater than or equal to 50% by volume, even greater than or equal to 60% by volume, more particularly greater than or equal to 70% by volume, most particularly greater than or equal to 80% by volume, relative to the total volume of the solid composition.

3. A solid composition according to claim 1 or 2, wherein the cavity is through-going.

4. A solid composition according to any one of the preceding claims, comprising one or more identical or different cavities, preferably a plurality of identical or different cavities.

5. A solid composition according to any one of the preceding claims, wherein the cavities are circular, rectangular, oval, triangular, polygonal, honeycomb, or in a tiled shape (or cut-out shape), such as a Voronoi diagram, preferably in a honeycomb shape.

6. A solid composition according to any one of the preceding claims, wherein the ratio of the volume of the cavity to the total volume of the composition is between 0.2 and 0.9, preferably between 0.2 and 0.8, better still between 0.2 and 0.7, even between 0.2 and 0.

6.

7. A solid composition according to any one of the preceding claims, wherein the biological / cosmetic active agent is selected from moisturizers, vitamins, anti-wrinkle or anti-aging agents, scarring agents, depigmenting agents, exfoliating agents, antioxidants, active agents that stimulate the synthesis of dermal and / or epidermal macromolecules, skin relaxants, antiperspirants, soothing agents and / or anti-aging agents and mixtures thereof.

8. Composition according to any of the preceding claims, wherein the composition comprises from 0.0001% to 60% by weight of biological / cosmetic active agent, preferably from 0.001% to 50% by weight of biological / cosmetic active agent, more particularly from 0.01% to 40% by weight of biological / cosmetic active agent, preferably from 0.1% to 35% by weight of biological / cosmetic active agent, preferably from 1% to 25% by weight of biological / cosmetic active agent, relative to the total weight of the composition.

9. A solid composition according to any one of the preceding claims, wherein the composition comprises at least one lipophilic gelling agent, preferably a thermosensitive lipophilic gelling agent, at least one oil and mixtures thereof.

10. The solid composition according to any one of the preceding claims, wherein the composition further comprises at least one aqueous phase dispersed in the solid composition, preferably in encapsulated form.

11. A solid composition according to any one of the preceding claims, wherein the composition is a single dose composition.

12. Kit, including: - at least one first solid composition, the first solid composition being a solid composition according to any one of claims 1 to 11; - at least one second liquid composition; and -Optionally at least one container.

13. Packaging comprising a plurality of solid compositions according to any one of claims 1 to 11, preferably in single-dose form, said compositions comprising different biological / cosmetic active agents and / or different contents of biological / cosmetic active agents.

14. A method for producing a solid cosmetic composition according to any one of claims 1 to 11, comprising at least the steps consisting of: (i) a composition having an obtainable liquid or semi-liquid form; (ii) casting the composition in a mold and drying until a solid composition is obtained, (iii) cutting the solid composition into a desired shape, and (iv) forming a cavity to obtain a solid composition according to any one of claims 1 to 11.

15. A method for producing a solid cosmetic composition according to any one of claims 1 to 11, comprising at least the steps consisting of: (a) a composition in liquid or semi-liquid form; (b) passing the composition of step (a) through an extrusion device equipped with a die suitable for forming into the shape of a solid stick, and (c) cutting the rod obtained in step (b) to obtain a solid composition according to any one of claims 1 to 11.

16. Non-therapeutic method for the cosmetic care treatment of keratinous substances, more particularly the skin and / or the lips, comprising at least one step of applying to said keratinous substances at least one composition according to any one of claims 1 to 11.

Images