Powdered natural soap and shampoo

Abstract

This application relates to formulations in powder form comprising sodium isethionate, aloe vera leaves, colloidal oatmeal, coconut milk or coconut oil, powdered jojoba vegetable oil, powdered copaiba resin oil, acacia senegal gum, soy lecithin, powdered lemongrass essential oil, powdered rosemary oleoresin, sodium gluconate, maize starch and arrowroot powder for use as soap and / or shampoo, gently cleansing the skin and scalp whilst protecting the skin barrier. The selected natural active ingredients are capable of reducing inflammation, soothing, treating and revitalising sensitive, reactive skin prone to conditions and inflammation, as well as maintaining the health of normal skin and hair. The focus is on protection and hydration in a formula packed with natural antioxidants, and the final formulation is suitable for all skin and hair / scalp types, from normal, dry or oily to reactive and sensitive skin affected by psoriasis, atopic dermatitis and / or erythema.

Description

[0001] "NATURAL SOAP AND NATURAL SHAMPOO POWDER"

[0002] FIELD OF THE INVENTION

[0003]

[0001] This application relates to the field of cosmetics and cosmeceuticals, more specifically to powder formulations for use as soap and / or shampoo, promoting gentle cleansing of the skin and scalp, protecting the skin barrier.

[0004] BACKGROUND OF THE INVENTION

[0005]

[0002] Conventionally, soap is an alkali metal salt of a higher fatty acid that is used for cleaning the body (skin) or scalp. Soap not only provides a unique feeling of freshness after washing, but also has good biodegradability and is an excellent cleaning material for the environment.

[0006]

[0003] Several types of body cleansing using such soaps are known in the state of the art. For example, there are solid, powder, liquid, paste, etc. types that are conventionally widely used. Among these, since a powder-type body cleanser is easy to apply / dissolve compared to a solid type, it excels in that it is easy to use even in cold water, and only the necessary amount can be used. Furthermore, a powder-type formulation is easy to handle, as it does not leak during transport, and the container does not become contaminated even when the product is removed, even when compared to the liquid or paste type.

[0007]

[0004] Document KR101229815 discloses a powdered soap composition containing a powdered soap made from an alkali metal salt of a fatty acid. The alkali metal salt of the fatty acid in the composition contains an alkali metal salt of a saturated fatty acid with 12 to 16 carbon atoms as the main component, the average particle size of the powdered soap is 50 to 500 µm, and the water content of the composition is 3% by weight or less.

[0005] Document JPS63145400 also discloses a cosmetic powdered soap formulation characterized by containing a coloring agent in a cosmetic powdered soap with a moisture content of 10% or less.This document cites the use of foaming agents and sensation modifiers that are commonly added to cosmetic soaps, as well as higher alcohols and hydrolyzed proteins of higher fatty acids, such as glycerides of higher fatty acids, finishing enhancers such as cationic cellulose, disinfectants such as trichlorocarbanilide, 2,4,4'-)-dichloro-2'-hydroxydiphenyl ether, other antioxidants, chelating agents, fragrances, pH adjusters, etc., which may be added as needed. Furthermore, regarding the powder form of the invention, the document also suggests a formulation as granules.

[0008]

[0006] Finally, document FR2969925 discloses an anhydrous cosmetic formulation comprising, in a physiologically acceptable medium: at least one non-ionic surfactant, at least one anionic surfactant, at least 25% of at least one filler. The article is partially or totally soluble in water, and constitutes a foaming product used for cleansing skin and hair and / or removing makeup from the skin and / or as an exfoliating product.

[0009]

[0007] It is clear that there is a demand, in the state of the art, for new alternatives in terms of powder formulations, both for cosmetic and cosmeceutical use.

[0010]

[0008] Furthermore, there is a huge demand for a soap and / or shampoo formulation that offers naturalness, sustainability, awareness, and health. The innovation proposed by this application is the ease of maintaining healthy, hydrated, and regenerated skin and scalp, since bathing is a self-care routine.

[0011] SUMMARY OF THE INVENTION

[0009] This application relates to powder formulations comprising sodium isethionate, aloe vera leaves, colloidal oat flour, coconut milk, powdered jojoba vegetable oil, powdered copaiba resin oil, Senegal acacia gum, soy lecithin, powdered lemongrass essential oil, powdered rosemary resin oil, sodium gluconate, corn starch and arrowroot root powder for use as a soap and / or shampoo, promoting gentle cleansing of the skin and scalp, protecting the skin barrier. The selected natural active ingredients are capable of reducing inflammation, caring for, treating and revitalizing sensitive, reactive skin prone to disease and inflammation, as well as maintaining the health of normal skin and hair.The product prioritizes protection and hydration in a formula full of natural antioxidants, resulting in a final formulation suitable for all skin and hair / scalp types, from normal, dry, or oily to reactive and sensitive skin suffering from psoriasis, atopic dermatitis, and / or erythema.

[0012] DETAILED DESCRIPTION OF THE INVENTION

[0013]

[0010] This application relates to powder formulations comprising sodium isethionate, aloe vera leaves, colloidal oatmeal, coconut milk, jojoba vegetable oil powder, copaiba resin oil powder, Senegal acacia gum, soy lecithin, lemongrass essential oil powder, rosemary resin oil powder, sodium gluconate, corn starch and arrowroot root powder for use as a soap and / or shampoo, promoting gentle cleansing of the skin and scalp, protecting the skin barrier and a preparation process thereof.

[0014]

[0011] The technology developed for the preparation of formulations according to the present application consists of the drying process of vegetable and essential oils by means of a Spray Dryer, transforming them from their liquid state into a water-dispersible powder. This process allows the incorporation of the oils into the final product formulas, enabling their use in a more efficient manner.

[0015]

[0012] During the drying process, microencapsulation of hydrophobic materials occurs, which depends on the efficient stabilization of the oil-in-water emulsion to be dried, through the addition of surfactants, such as proteins and polysaccharides.

[0016]

[0013] The process according to the present application uses a Spray Dryer to transform the oils into powder by means of atomization and, for this purpose, the following preferred temperature and flow rate conditions are, respectively: 180°C and 485 ml / h. The process is carried out equally for all oils, only the proportions of wall material, oil and water used are altered. The preferred machinery model is the SD-06 SPRAY DRYER.

[0017]

[0014] In the development of the base emulsion according to the present application, the oil was added to a beaker using a balance, followed by the Maltodextrin and then the CAPSUL starch. The preparation of the wall material solution is done by dissolving the IPS and IN in distilled water, for each formulation. It is kept at room temperature for 12 hours to ensure complete saturation of the polymer molecules and, the following day, emulsification is carried out by progressively adding the oil to the wall material solution under stirring at 3500 rpm for 10 minutes, with the aid of a homogenizer. The preferred mass ratio of oil to wall material is 1:4 (w / w). The percentage of solids (wall material) used as feed solution is preferably 20% (w / w) for all treatments. Next, water is added and the mixture is transferred to a mixer until it becomes an emulsion.After this emulsion is complete, the liquid is transferred to an Erlenmeyer flask which is connected to the Spray Dryer, initiating the drying process.

[0015] The preferred final quantities and proportions of each ingredient are described below in Table 1.

[0018] Table 1: Preferred final quantities and proportions of each input.

[0019]

[0016] The final product relating to the oil was: 35.6g of jojoba oil powder, 22.2g of rosemary resin oil powder and 106.35g of lemongrass essential oil powder (corresponding to two batches of lemongrass essential oil).

[0020]

[0017] Therefore, it was decided that the materials and basic proportions used for preparing the emulsion that goes into the Spray Dryer would be those shown in Table 2 below. Table 2: Materials and basic proportions used for preparing the emulsion that goes into the Spray Dryer

[0021]

[0018] In terms of composition, the formula for the natural soap powder according to the present application is as shown in Table 3 below.

[0022] Table 3: Formula for natural powdered soap

[0023] Pharmaceutical Technology

[0024]

[0019] Phase 1 (single) - Weigh all components individually. If any of them show lumps, sift them. Following the order of the table, transfer each ingredient to a powder mixer, one by one. Homogenize well after each addition. After final homogenization, package. If necessary, adjust the pH to 5.0

[0025]

[0020] Physicochemical parameters:

[0026] Appearance: loose powder

[0027] Color: yellowish-white

[0028] Scent: lemongrass pH (10% solution): 5.0 ± 0.3

[0029]

[0021] Main function:

[0030] Gently cleanse the skin while protecting the skin barrier.

[0031]

[0022] In terms of composition, the formula for the natural shampoo powder according to the present application is as shown in Table 4 below.

[0032] Table 4: Formula for natural powdered shampoo

[0033] Pharmaceutical Technology

[0034]

[0023] Phase 1 (single) - Weigh all components individually. If any of them show lumps, sift them. Following the order of the table, transfer each ingredient to a powder mixer, one by one. Homogenize well after each addition. After final homogenization, package. If necessary, adjust the pH to 5.0

[0035]

[0024] Physicochemical parameters:

[0036] Appearance: loose powder

[0037] Color: yellowish-white. Odor: lemongrass. pH (10% solution): 5.2 ± 0.3

[0038]

[0025] Main function:

[0039] Cleanse hair and scalp gently without drying.

[0026] It is worth noting that the lemongrass oil and copaiba resin oil used are agroforestry, agroecological and sustainably sourced ingredients.

[0040]

[0027] It is also worth highlighting that the choice of the synergy of plants present in the composition according to the present request was based on the presence of the terpene beta-caryophyllene. It is capable of activating the endocannabinoid system through CB2 receptors, present in human skin, resulting in an anti-inflammatory, immunomodulatory and antioxidant action. There are studies that even indicate its potential for skin regeneration, stimulating fibroblasts, aiding in its beauty and health. These are:

[0041]

[0028] Lemongrass essential oil: characterized by its antioxidant composition of the terpenes citral, delta 3 carene, geraniol, trans (beta) caryophyllene, and menthol. Citral has antifungal action. Some studies also indicate a composition of myrcene, a terpene responsible for pain relief: it does so by binding to vanilloid receptors, the same ones activated by cannabinoids. It is responsible for reducing and balancing the skin's natural oiliness. Its aroma is used in the treatment of headaches. Limonene is a relaxing terpene in its composition and is common in several cannabis species.

[0042]

[0029] Rosemary resin oil (Rosmarinus officinalis): potent antioxidants such as rosmarinic acid, rosmaridiphenol and rosmariquinone, with actions for the natural preservation system of the formula. Resin oil is different from essential oil. Rosemary is known to stimulate and improve blood circulation and also the hair follicle. The terpenes present in resin oil, rosmandiphenol and rosmariquinone, also have antioxidant effects.

[0043]

[0030] Copaiba oil: Discovered by indigenous culture, anti-inflammatory and healing, with antimicrobial action. Used even in cases of acne. In addition to beta-caryophyllene (35-50% of its composition) it also has humulene and copaene, characteristic of the plant.

[0044]

[0031] An in vitro vegan study was conducted to evaluate the activation of the endocannabinoid system, which demonstrated a significant stimulation of the expression of CB1 and CB2 receptors related to the activation of the endocannabinoid system, validating our choice of synergy for action on the endocannabinoid system of human skin keratinocyte cells.

[0045]

[0032] Moreover, colloidal oatmeal is rich in vitamins (B1, B2, and B5) and amino acids for the skin. It brings softness and hydration to skin and hair. Beta-glucan and avenatramides are among its most important compounds: it is immunostimulating, providing protection for the skin, in addition to stimulating skin collagen (healing and wrinkle action, optimized by its collagen peptides). Avena sativa is able to regulate sebaceous glands (it contains salicylic acid), and brings relief and comfort due to its anti-inflammatory action for sensitive and reactive skin due to the action of avenatramides. It regulates antimicrobial activity naturally because it is rich in flavonoid antioxidants. Another antioxidant compound is vitamin E.

[0046]

[0033] Jojoba (Simmondsia chinensis) is a species rich mainly in oleic acid, which promotes skin hydration without clogging pores, regulating oiliness and stimulating skin regeneration and hair growth. It also contains vitamins A, E, B1, B2 and myristic acid (anti-inflammatory and protects against irritation), and of course, ceramides, which represent the largest part of its composition. Ceramides form a protective film and protect the skin from water loss, maintaining hydration.

[0047]

[0034] Coconut milk (Cocus nucifera) contains fatty acids that can treat dandruff, skin infections, and dry hair and dermatitis, acting as an antifungal. In addition to moisturizing, it does not clog pores like coconut oil.

[0035] Aloe vera is known for its therapeutic benefits for hair and skin. Rich in moisturizing and protective properties, it also has a recognized antioxidant action due to its high levels of vitamin E. It prevents hair loss and strengthens hair strands. Moisturizing, refreshing, and rejuvenating for the skin.

[0048]

[0036] Acacia gum is known for its prebiotic action, stimulating beneficial bacteria. Furthermore, its structure is similar to that of collagen, forming a protective film that helps maintain skin hydration. For hair, it improves elasticity and reduces frizz.

[0049]

[0037] Tests were also conducted to evaluate the primary and cumulative dermal irritation and sensitization caused by the shampoo according to the present application, compared to a control, applied under a semi-occlusive dressing (patch test), as well as to evaluate the primary and cumulative dermal irritation and sensitization caused by the soap according to the present application, compared to a control, applied under a semi-occlusive dressing (patch test).

[0050]

[0038] The design of both tests was that of a single-center, single-blind, randomized, controlled clinical study to verify the safety of cosmetic products, in which participants registered in specific databases were recruited. Participants were selected according to their characteristics and cosmetic habits, and invited to attend the Institution on the first day of the research for an initial assessment by the Investigator regarding the inclusion and exclusion criteria. Only eligible participants were selected for the research.

[0051]

[0039] For the soap test, the product was applied diluted to 5% in distilled water over semi-occlusive dressings. Distilled water was used as a control. The dressings were placed on the right or left back of the participants (according to randomization). The positions of the products and control on each participant's dressings were maintained throughout the entire study. A patch test was employed. The product and the control were applied under a semi-occlusive dressing on the participants' backs, on the right or left side (according to randomization). The patch remained on the skin for 48 hours, after which it was removed for reading clinical signs and questioning about discomfort sensations by the dermatologist. After the reading, a new dressing was applied, keeping the products in the same position.

[0052]

[0040] For the shampoo test, the procedure was the same, the only difference being the formulation of the shampoo itself, which differs from the formulation of the soap.

[0053]

[0041] No adverse reactions were detected in the product and control application areas during the study period. No participant reported any discomfort to the product or control during the study.

[0054]

[0042] It is understood that when the present application is put into practice, modifications may be introduced with regard to certain details of proportion and form, without this implying a departure from the fundamental principles that are clearly substantiated in the claims, it being understood that the tabulated values ​​are not intended as a limitation.

Claims

CLAIMS 1. Natural soap powder characterized by comprising sodium isethionate, aloe vera leaf (Aloe Barbadensis), colloidal oat flour (Avena sativa), coconut milk, jojoba vegetable oil powder (Simmondsia chinensis), copaiba oleoresin powder (Copaifera officinalis), acacia Senegal gum, lecithin powder, lemongrass essential oil powder (Cymbopogon schoenanthus), rosemary oleoresin powder (Rosmarinus officinalis), sodium gluconate, corn starch and arrowroot root powder (Maranta arundinacea).

2. Soap, according to claim 1, characterized in that it comprises 46.0% sodium isethionate, 2.0% aloe vera leaf (Aloe Barbadensis), 2.0% colloidal oat flour (Avena sativa), 9.8% coconut milk, 2.0% jojoba vegetable oil powder (Simmondsia chinensis), 1.0% copaiba oleoresin powder (Copaifera officinalis), 2.0% Senegal acacia gum, 1.5% lecithin powder, 4.0% lemongrass essential oil powder (Cymbopogon schoenanthus), 0.5% rosemary oleoresin powder (Rosmarinus officinalis), 0.2% sodium gluconate, 14.5% corn starch and 14.5% root powder of arrowroot (Maranta arundinacea).

3. Natural shampoo powder characterized by comprising sodium isethionate, aloe vera leaf (Aloe Barbadensis), colloidal oat flour (Avena sativa), coconut oil, jojoba vegetable oil powder (Simmondsia chinensis), copaiba resin oil powder (Copaifera officinalis), acacia Senegal gum, lecithin powder, lemongrass essential oil powder (Cymbopogon schoenanthus), rosemary resin oil powder (Rosmarinus officinalis), sodium gluconate, corn starch and arrowroot root powder (Maranta arundinacea).

4. Shampoo, according to claim 3, characterized in that it comprises 46.0% sodium isethionate, 3.3% aloe vera leaf (Aloe Barbadensis), 2.0% colloidal oat flour (Avena sativa), 1.5% coconut oil, 5.0% jojoba vegetable oil powder (Simmondsia chinensis), 0.8% copaiba oleoresin powder (Copaifera officinalis), 1.5% Senegal acacia gum, 1.5% lecithin powder, 4.8% lemongrass essential oil powder (Cymbopogon schoenanthus), 0.5% rosemary oleoresin powder (Rosmarinus officinalis), 0.2% sodium gluconate, 16.45% corn starch and 16.45% arrowroot root powder (Maranta arundinacea).

5. Use of natural soap powder, as defined in either claim 1 or 2, characterized by being used in the preparation of a cosmeceutical soap for activation of the endocannabinoid system.

6. Use of natural powdered soap, as defined in either claim 1 or 2, characterized by being used in the preparation of a soap to reduce inflammation, care for, treat and revitalize sensitive, reactive skin prone to disease and inflammation, as well as to maintain skin health.

7. Use of natural shampoo powder, as defined in either of claims 3 or 5, characterized by being used in the preparation of a cosmeceutical shampoo for activation of the endocannabinoid system.

8. Use of natural shampoo powder, as defined in any of claims 3 or 5, characterized by being used in the preparation of a cosmeceutical shampoo to reduce inflammation, care for, treat and revitalize sensitive, reactive skin prone to disease and inflammation, as well as to maintain the health of normal skin and hair.

9. Process for preparing a formulation, as defined in any one of claims 1 to 4, characterized in that it comprises the steps of: an initial drying step of the vegetable and essential oils using a spray dryer, followed by individual weighing of all components, with the The process involves clumping, sifting, transferring each ingredient to a powder mixer, one by one, with homogenization after each addition, and, after final homogenization, packaging, in which, if necessary, the process includes a final pH adjustment step to 5.0.

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