Cosmetic composition applicator for the scalp

Abstract

The invention relates to a device for applying a cosmetic composition to an individual's scalp, comprising in particular a light source capable of emitting light in a wavelength spectrum between 620 and 625 nm, a motor for creating microvibrations, a reservoir for a cosmetic composition, and teeth for releasing said cosmetic composition. Furthermore, the invention also relates to a cosmetic method for scalp care implemented by the device according to the invention, and a kit comprising said device and a cosmetic composition.

Description

Title of the invention: Applicator for cosmetic composition for the scalp

[0001] The invention relates to a device for applying a cosmetic composition to an individual's scalp, comprising in particular a light source capable of emitting light in a wavelength spectrum between 620 and 625 nm, a motor for creating microvibrations, a reservoir for a cosmetic composition, and teeth for releasing said cosmetic composition. Furthermore, the invention also relates to a cosmetic method for treating an individual's scalp implemented by the device according to the invention, and a kit comprising said device and a cosmetic composition.

[0002] The field of the invention relates in particular to devices and methods enabling the non-therapeutic care of an individual's scalp. Previous Art

[0003] Nowadays, a healthy-looking scalp and hair are signs of good health and contribute to an attractive appearance for both women and men.

[0004] Hair can be damaged by various environmental sources and by chemical treatments. It protects the scalp from sunburn and mechanical damage, and ensures thermoregulation (Robbins CR 2012 - Chemical and Physical Behavior of Human Hair, 4th ed. Springer-Verlag: Heidelberg, Germany).

[0005] Hair disorders are primarily caused by variations in hair follicle density, as well as by changes in hair size and / or growth cycles. These disorders have a dramatic impact on quality of life and emotional well-being (Cash TF 1999 - Br. J. Dermatol. 141: 398-405; Schmidt S. et al. 2001- Br. J. Dermatol. 144: 1038-1043). This can result in low self-esteem and a poor body image.

[0006] In particular, baldness is a societal problem for most people, men or women, regardless of age. It is also often accompanied by mental distress and difficult-to-bear feelings, such as a lack of attractiveness and the aging process. This syndrome is complex, depends on many factors, and, moreover, the psychological complications are significant.

[0007] Hair loss is a natural process, where each hair follicle must be recycled to produce new hair. Unnatural hair loss is primarily due to a hormonal imbalance of dihydrotestosterone (DHT), to a inadequate blood flow to the head or hair roots, and a decrease in oxygen and nutrients in the scalp.

[0008] Cosmetic solutions currently on the market are often disappointing. Indeed, they are inconvenient, unpleasant, and rarely effective, which leads to users abandoning the treatment in the vast majority of cases.

[0009] The scalp care market is evolving very rapidly and consumers are always demanding new products to maintain the good health of their scalp, which is put to the test by the causes mentioned above, and there therefore remains a need for new cosmetic solutions that are simple and pleasant for the user in order to promote hair renewal.

[0010] To resolve these problems, the Applicant has developed a device that combines light therapy, microvibrations and the application of a cosmetic composition to promote hair renewal. Description of the invention

[0011] Thus, according to a first aspect, the invention relates to a device (1) for applying a cosmetic composition (13) to the scalp of an individual, characterized in that it comprises: • a light source (2) capable of emitting light in a spectrum of wavelengths between 620 and 625 nm, preferably 625 nm, said light source (2) being positioned so as to expose the scalp to said light; • a motor that creates micro-vibrations; • a reservoir (5) for said cosmetic composition (13); • teeth (3) comprising conduits connected to said reservoir (5), and orifices allowing the release of said cosmetic composition (13) from said reservoir (5); • a switch (6) allowing the opening of the orifices of said teeth (3), and allowing the release of said cosmetic composition (13) contained in said reservoir by said teeth (3).

[0012] Preferably, said application device (1) for a cosmetic composition (13) further includes teeth (4) not including conduits and orifices, and therefore not allowing the release of the cosmetic composition (13).

[0013] Preferably, said teeth (3) allowing the release of the cosmetic composition are made of metal.

[0014] Preferably, said metal teeth (3) are made of copper and / or stainless steel.

[0015] Preferably, said teeth (4) not allowing the release of the cosmetic composition are made of plastic, preferably polypropylene.

[0016] The teeth (4) can also be called pins (4).

[0017] Unlike the teeth (3), preferably made of metal, said teeth (4), preferably made of plastic, do not include channels connected to said reservoir (5), and do not include orifices allowing the release of said cosmetic composition (13). These teeth (4), preferably made of plastic, are intended to allow brushing of the hair and to contribute to the spreading of the composition delivered by said teeth (3).

[0018] Preferably, said teeth (4), preferably made of plastic, have a length between 8 and 10 mm, preferably between 9 mm and 9.7 mm, even more preferably some teeth (4) have a length of 9 mm and others of 9.7 mm.

[0019] Preferably, said teeth (4), preferably made of plastic, have a diameter between 1 and 4 mm, preferably 2.65 mm.

[0020] Preferably, said teeth (3), preferably made of metal, have a length between 10 and 15 mm, preferably 13 mm.

[0021] Preferably, said teeth (3), preferably made of metal, have a diameter between 2 and 5 mm, preferably 3.5 mm.

[0022] Preferably, the device (1) according to the invention comprises between 2 and 8 teeth (4), preferably made of plastic, more preferably 5 teeth (4).

[0023] Preferably, the device (1) according to the invention comprises between 3 and 10 teeth (3), preferably made of metal, preferably 6 teeth (3).

[0024] According to one embodiment, the device (1) according to the invention comprises: • 4 teeth (4), preferably made of plastic, 9 mm long and with a diameter of 2.65 mm; • 1 tooth (4), preferably made of plastic, 9.7 mm long and with a diameter of 2.65 mm; • 6 metal teeth (3) with a length of 13 mm and a diameter of 3.5 mm.

[0025] Preferably, said light source (2) comprises between 1 and 4 light-emitting diodes, preferably 2 light-emitting diodes.

[0026] Preferably, said reservoir (5) being closed by a lid (7).

[0027] Preferably, said microvibrations have a frequency of 10,000 rpm / minute.

[0028] Preferably, the luminous intensity of said light source (2) is between 100 and 200 mcd, even more preferably 150 mcd.

[0029] Preferably, the power of said light source (2) is 0.04 watt.

[0030] Preferably, said application device (1) according to the invention comprises also an indicator of the level (8) of cosmetic composition (13) remaining in the device (1).

[0031] Even more preferably, said level indicator (8) is a visual indicator thanks to a transparent section of the device, allowing, by means of a graduation, to gauge the quantity of cosmetic composition remaining in the reservoir.

[0032] Preferably, said application device (1) according to the invention further includes a USB plug for charging said device.

[0033] Preferably, the reservoir (5) can contain 7 mL of composition,

[0034] Preferably, said application device (1) according to the invention comprises also a battery, preferably 110 mAh.

[0035] Preferably, said device (1) includes a timer for controlling the duration of each step.

[0036] Preferably, said application device (1) also includes another switch (9) for turning the application device (1) according to the invention on or off.

[0037] Preferably, said application device (1) also includes a cover (7) for the reservoir, allowing the cosmetic composition (13) to be kept in said reservoir (5).

[0038] Preferably, said application device (1) also includes a protective cover for the teeth (3,4) of the application device (1).

[0039] According to a second aspect, the invention relates to a non-therapeutic cosmetic method for scalp care of an individual implemented by the device (1) according to the invention, comprising concomitantly and for a determined period the following steps: • a step of exposure to a light source (2) in a spectrum of wavelengths between 620 and 625 nm; • a step of exposing said area of ​​skin to be treated to microvibrations; • a micro-diffusion release step of a cosmetic composition (13) for scalp care, preferably a non-therapeutic cosmetic composition to promote hair renewal.

[0040] Preferably, the process is carried out over a determined period of 30 seconds to 10 minutes, preferably between 1 and 5 minutes, even more preferably 3 minutes.

[0041] Preferably, said scalp care composition is a non-therapeutic cosmetic composition to promote hair renewal.

[0042] Preferably, said method according to the invention can be used morning and evening by a user.

[0043] Preferably, said method according to the invention can be used for at least 28 days, preferably at least 2 months, even more preferably at least 4 months.

[0044] According to a third aspect, the invention relates to a kit comprising: • A device (1) according to the invention; • A cosmetic composition (13) for the care of an individual's scalp, preferably a non-therapeutic cosmetic composition to promote hair renewal.

[0045] According to a fourth aspect, the invention relates to the use of the device (1) according to the invention to apply a scalp care composition, preferably a non-therapeutic cosmetic composition to promote hair renewal.

[0046] In all aspects of the invention, the non-therapeutic composition to promote hair renewal preferably comprises: • Acetyl tetrapeptide-3 and red clover flower extract, in order to non-therapeutically reduce local micro-inflammations, slow hair loss and activate hair renewal; • Witch hazel, apple, nettle, horse chestnut, and St. John's wort, to help strengthen hair in a non-therapeutic way;

[0047] A mixture of glycerin, butylene glycol, carbomer, polysorbate 20, palmitoyl tripeptide-1, palmitoyl tetrapeptide-7, allowing for the non-therapeutic improvement of the quality of the hair bulb to consolidate the anchoring of the hair and slow down its loss; • Adenosine, in order to provide non-therapeutic energy to the cells of the hair bulb.

[0048] In addition, said non-therapeutic composition may also include butylene glycol, dextran,

[0049] Said red clover flower extract is obtained by extraction from the plant, by any process known to a person skilled in the art.

[0050] Even more preferably, said non-therapeutic composition comprises a mixture of several compositions, of which at a minimum: • A first composition, preferably between 0.5 and 5%, even more preferably 2.5%, comprising: i. 50% butylene glycol; ii. Qsp water; iii. Between 0.090 and 0.150% Dextran; iv. between 0.020 and 0.035% of Acetyl Tetrapeptide-3; v. between 0.020 and 0.030 of red clover flower extract (Trifolium Pratense (Clover) Flower Extract) • A second composition, preferably between 0.5% and 5%, even more preferably 3%, comprising: i. Qsp glycerin; ii. Approximately 25% water; iii. approximately 20% butylene glycol; iv. Approximately 1% carbomer; v. approximately 0.5% of polysorbate 20; vi. Approximately 0.01% palmitoyl tripeptide-1; vii. Approximately 0.005% palmitoyl tetrapeptide-7; viii. Optionally, a maximum of 1% sodium lactate.

[0051] According to one embodiment, said first composition is that marketed under the name Capixyl™.

[0052] According to one embodiment, said second composition is that marketed under the name MATRIXYL ® 3000.

[0053] Preferably, said cosmetic composition according to the invention is a composition in the form of a lotion, milk, emulsion, serum, cream, dispersion, or gel, preferably in the form of an aqueous gel.

[0054] The cosmetic composition according to the invention, in addition to the elements stated above, and a cosmetically acceptable medium, may also contain surfactants, complexing agents, preservatives, stabilizing agents, emulsifiers, thickeners, gelling agents, humectants, emollients, trace elements, essential oils, perfumes, colorants, mattifying agents, chemical or mineral filters, moisturizing agents, thermal waters, etc.

[0055] The application device (1) according to the invention, coupled with the cosmetic composition (13) according to the invention, makes it possible to target in a non-therapeutic way the main causes of hair loss at the level of the hair bulb, where they take root.

[0056] Furthermore, in a non-therapeutic manner, the application device (1) according to the invention, coupled with the cosmetic composition (13) according to the invention: • Soothes local micro-inflammations • Inhibits the enzyme responsible for hair loss (5-alpha-reductase) • Slows down the miniaturization of the hair bulb, which thins the hair • Improves hair anchoring (collagen and laminin synthesis) • Stimulates hair regeneration • Promotes a return to an optimal hair growth cycle.

[0057] In detail, the application of red light at 625 nm has a soothing, regenerating, and stimulating effect. By increasing the synthesis of collagen and elastin, it improves scalp quality to promote hair anchoring and limit the effects of aging. It also reduces local micro-inflammations.

[0058] In addition, the application of micro-vibrations provides immediate relaxation while stimulating local microcirculation and cellular exchanges. Figures

[0059] [Fig.1] is a photograph viewed from the front, teeth upwards, of the device according to the invention, where the protective cover for the teeth of the device has been removed.

[0060] [Fig.2] is a front view photograph, teeth downwards, of the device according to the invention, where the protective cover for the teeth of the device has been closed.

[0061] [Fig.3] is a schematic representation, front view, teeth downwards, of the device according to the invention, where the protective cover for the teeth of the device is visible but not closed.

[0062] [Fig.4] is a schematic representation viewed from above, teeth downwards, of the device according to the invention, where a pipette is visible allowing the device according to the invention to be filled with a cosmetic composition or water.

[0063] [Fig.5] is a schematic representation viewed from above, teeth downwards, of the device according to the invention, where a pipette is visible allowing the device according to the invention to be filled with a cosmetic composition or water.

[0064] [Fig. 6] comprises two photographs of an individual's scalp. The photograph Photograph A was taken before the individual underwent the procedure according to the invention on their scalp. Photograph B was taken after the individual underwent the procedure according to the invention on their scalp. Definitions

[0065] The term "teeth" refers to the parallel tines that conventionally make up a hair comb. These teeth can vary in size, length, and thickness, and are usually used to tidy hair and body hair. In this case, within the scope of the invention, these teeth also allow for the release of a cosmetic composition, due to their hollow cylindrical shape connected to a reservoir.

[0066] By "micro-vibrations", the present invention refers to vibrations having a frequency of 10,000 rpm / minute, or approximately 167 Hz.

[0067] “Hair renewal” is understood to mean the non-therapeutic prevention and / or reduction of hair loss and baldness, thereby promoting natural hair regeneration. This hair treatment allows for a quick and natural return to visibly thicker hair.

[0068] According to the invention, "micro-diffusion" means that the cosmetic composition is diffused precisely and progressively by the teeth of the device according to the invention for perfect impregnation of the scalp, where it is needed.

[0069] For the purposes of this invention, "cosmetically acceptable" means something that is useful in the preparation of a cosmetic composition, that is generally safe, non-toxic and neither biologically nor otherwise undesirable, and that is acceptable for cosmetic use, in particular by topical application to the skin.

[0070] In this description, "approximately" means that the value in question may be 10% lower or higher, in particular 5%, in particular 2%, more particularly 1%, than the value indicated.

[0071] For the purposes of this invention, "non-therapeutic" means a cosmetic application not intended to treat a patient. In fact, the cosmetic composition according to the invention does not act as a drug for the treatment of baldness, also known as alopecia, but rather improves the superficial visual appearance of the scalp.

[0072] According to the invention, "concomitant" means that the different stages of the process according to the invention are carried out and that the compositions are administered at the same time or up to the same day or a few days later.

[0073] According to the invention, "application device" means a device that allows a cosmetic composition to be administered topically to a targeted area of ​​the skin or scalp, and thus allows its proper application.

[0074] According to the invention, "scalp" means the skin covering the skull on which the hair grows. In the context of the invention, the scalp includes the hair.

[0075] The term "light source" means a means of emitting light at a specific wavelength. This means may, for example, be a light-emitting diode.

[0076] The term "light-emitting diodes" or "LEDs" refers to electronic components that emit low-frequency light when an electric current passes through them. They emit light that is considered "cold" because it does not produce heat. This characteristic is due to the absence of resistance, which is present in other light bulbs. LEDs fall under the category of LLLT (Low Level Laser Therapy). They have the advantage of being inexpensive compared to lasers or flash lamps and, due to their lower light intensity, do not present a risk of burns or other skin injuries if exposure is not performed correctly. Light-emitting diodes emit light in a spectrum that extends from the visible to the infrared.

[0077] By "wavelength spectrum between 620 and 625 nm, preferably 625 nm" is meant light corresponding to red light.

[0078] According to the invention, "reservoir" means a reservoir for receiving and storing the cosmetic composition in the device according to the invention.

[0079] By "lid" is meant a means of closing the reservoir so that the cosmetic composition cannot escape from the reservoir through the point of entry of the composition.

[0080] By "a switch allowing the opening of the orifices of said teeth (3)" is understood a means allowing the opening of holes present on said teeth, preferably made of metal, so that the cosmetic composition in liquid form can be released from said reservoir towards the teeth and towards the scalp of the user.

[0081] By “level indicator” is meant a visual means of knowing the quantity of cosmetic composition remaining in the device according to the invention.

[0082] By "switch enabling the device to be turned on or off" is understood according to the invention a means of enabling the device according to the invention as a whole to be turned on and off.

[0083] By "protective cover for the teeth of the application device" is meant a means of covering the teeth of the device according to the invention so that they are no longer visible and accessible.

[0084] By "step of exposure to a light source" is understood that the targeted area of ​​skin, in this case the scalp, is directly exposed to the desired light radiation, by bringing the light source as close as possible to said targeted area of ​​skin.

[0085] By "determined period" is meant a duration of time fixed by the device or the user, during which the different stages of the process are carried out by the device according to the invention. Detailed description of the invention

[0086] According to one embodiment of the invention, the application device (1) according to the invention is switched on by the user using a switch (9) of the device visible in particular in figures 1 to 3.

[0087] The user can remove the protective cover from the teeth of the device (10), visible in figures 2 and 3, in order to make the teeth (3, 4) accessible.

[0088] Next, the user places the application device (1) on the scalp, as illustrated in [Fig.5], and presses the liquid outlet switch (6), while moderately gliding it over the scalp, including brushing the hair, so that the liquid is applied evenly, for example on sparse areas of the scalp.

[0089] In parallel, the light sources (2) visible on [Fig.2] expose the scalp to red lights, and the device (1) vibrates thanks to the motor included, in order to produce microvibrations for the scalp.

[0090] The motor producing the microvibrations is not visible in the figures because it is positioned inside the device (1) according to the invention.

[0091] Once the usage cycle, preferably of 3 minutes, has ended, the user can press the switch (9) of the device to turn it off.

[0092] In order to protect the teeth (3, 4), the user can close the cover (10) as seen in figures 2 and 3.

[0093] According to one embodiment, in order to fill the device (1) according to the invention, the user removes the cover (7) of the reservoir (5), visible in particular in Figures 1 to 3.

[0094] As illustrated in [Fig.4], the user can use a pipette (12) (or alternatively introduce directly from the neck of the composition container) to introduce the cosmetic composition (13) into the reservoir (5).

[0095] Once the composition (13) has been introduced, the user aligns the lid (7) with the mouth of the reservoir (5) and presses to close the reservoir (5).

[0096] The user can constantly monitor the level of cosmetic composition (13) remaining in the reservoir using the level indicator (8), as seen in figures 1 to 4.

[0097] According to one embodiment, when the user wants to clean the device (1) according to the invention, the latter uses the same filling process described above, but replacing the composition (13) with water or cleaning solution.

[0098] In addition, the user can leave the lid (7) of the tank (5) open and gently shake the device in order to rinse all the walls of the tank (5).

[0099] Regarding the teeth (3, 4), these can be cleaned using water or cleaning solution applied directly to them.

[0100] The device (1) according to the invention can, according to one embodiment, be charged using a USB port (11) visible on the [Fig.3], in order to charge the battery included in the body of the device (1). Examples

[0101] Example 1: Testing the effectiveness of the device and method according to the invention:

[0102] The method according to the invention is used for 4 months, morning and evening, using the device according to the invention.

[0103] 30 subjects with sparse patches of hair on the scalp receive the process according to the invention with the cosmetic composition according to the invention, and 30 similar subjects receive the process according to the invention with a placebo composition.

[0104] The method comprises applying the following concurrent steps for 3 minutes using the device according to the invention: • an exposure step to a light source (2) with a wavelength spectrum of 625 nm, at a light intensity of 150 mcd; • a step of exposing said area of ​​skin to be treated to microvibrations; • a micro-diffusion release step of the cosmetic composition (13) to promote hair renewal for the 30 subjects receiving it, and the placebo composition for the others

[0105] The application of these steps and of the composition is carried out by passing over the scalp and brushing the hair using the device according to the invention, in particular on the sparse areas.

[0106] Results

[0107] The results obtained for the two groups demonstrate superior efficacy for the group that received the composition to promote hair renewal according to the invention.

[0108] Indeed, hair density is increased, hair loss is reduced, and hair growth is increased. These measurements are carried out by trichogram analysis. A visual illustration of this improvement related to the composition applied according to the process of the invention using the device according to the invention is found in [Fig. 6], where increased density is visible in Figure 6B, which is a photograph of an individual undergoing the process according to the invention, compared to Figure 6A, which dates from before the application of the process according to the invention. References

[0109] (1) Device according to the invention

[0110] (2) Light source

[0111] (3) Teeth enabling the release of the cosmetic composition

[0112] (4) Teeth not allowing the release of the cosmetic composition

[0113] (5) Reservoir

[0114] (6) Switch enabling the opening of the orifices of said teeth

[0115] (7) Tank cover

[0116] (8) Cosmetic composition level indicator

[0117] (9) device switch

[0118] (10) Protective cover for the teeth of the device

[0119] (11) Device charging USB port

[0120] (12) Pipette for introducing the composition

[0121] (13) Cosmetic composition

Claims

Demands

1. Device (1) for applying a cosmetic composition (13) to the scalp of an individual, comprising: • a light source (2) capable of emitting light in a spectrum of wavelengths between 620 and 625 nm, preferably 625 nm, said light source (2) being positioned so as to expose the scalp to said light; • a motor for creating microvibrations; • a reservoir (5) for said cosmetic composition (13); • teeth (3) comprising conduits connected to said reservoir (5), and orifices for releasing said cosmetic composition (13) from said reservoir (5);• a switch (6) allowing the opening of the orifices of said teeth (3), and allowing the release of said cosmetic composition (13) contained in said reservoir by said teeth (3) characterized in that said application device (1) further comprises teeth (4) for brushing hair and spreading said cosmetic composition (13), not comprising conduits and orifices, and therefore not allowing the release of the cosmetic composition (13).

2. Device for applying (1) a cosmetic composition (13) according to the preceding claim, wherein said light source (2) comprises between 1 and 4 light-emitting diodes, preferably 2 light-emitting diodes.

3. Application device (1) for a cosmetic composition (13) according to any one of the preceding claims, wherein said micro-vibrations have a frequency of 10,000 rpm / minute.

4. Device for applying (1) a cosmetic composition (13) according to any one of the preceding claims, wherein said teeth (3) are made of metal and / or said teeth (4) are made of plastic.

5. Application device (1) for a cosmetic composition (13) according to any one of the preceding claims, the device (1) according to the invention comprises: • 4 teeth (4), preferably made of plastic, of a length of 9 mm and a diameter of 2.65 mm; • 1 tooth (4), preferably made of plastic, of a length of 9.7 mm and a diameter of 2.65 mm; • 6 teeth (3), preferably made of metal, of a length of 13 mm and a diameter of 3.5 mm.

6. A non-therapeutic cosmetic method for the care of an individual's scalp, implemented by the device (1) according to any one of the preceding claims, characterized in that it comprises, concurrently and for a specified period, the following steps: • a step of exposure to a light source (2) in a spectrum of wavelengths between 620 and 625 nm, preferably 625 nm; • a step of exposure of said area of ​​the skin to be treated to micro-vibrations; • a step of release by micro-diffusion of a cosmetic composition (13) for scalp care.

7. A non-therapeutic cosmetic method for the care of an individual's scalp according to the preceding claim, wherein said determined period has a duration of 30 seconds to 10 minutes, preferably between 1 and 5 minutes, even more preferably 3 minutes.

8. Kit comprising: • A device (1) according to any one of claims 1 to 5; • A cosmetic composition (13) for the care of an individual's scalp, preferably a non-therapeutic cosmetic composition to promote hair renewal.

9. Use of the device (1) according to any one of claims 1 to 5, to apply a scalp care composition.

Images