FR3041533A1 - COSMETIC DEODORANT AND / OR ANTI-TRANSPIRANT COMPOSITION BASED ON AN ASSOCIATION OF LACTOBACILLUS FERMENT, SACCHAROMYCES FERMENT, AND LACTIC ACID - Google Patents

Abstract

The invention relates to a natural deodorant composition offering real effectiveness without resorting to the chemical active agents usually used in conventional deodorants. A deodorant lotion for preventing perspiration odors in the axillary region over a long period of time has been formulated to achieve the objects of this invention, a lotion having a pH of from 2 to 5 which contains, in order of weight of water, 80 to 90%, glycerin in a proportion of 6 to 9%, lactic acid in a proportion of 3 to 5%, a lactobacillus ferment in the proportion of 1 to 4%, a saccharomyces ferment in the proportion of 0.5 to 3%, potassium sulphite in the proportion of 0.05% and 1%, benzyl alcohol in the proportion of 0.3 to 0.7%, a perfume element in the proportion of 0 , 5%, dehydrocetic acid of 0.02 to 0.08%. The deodorant composition according to the invention can be used alone as a topical treatment against perspiration odors or added to the formula of a cosmetic product in order to add a deodorant function to it.

Description

A deodorant and / or antiperspirant cosmetic composition based on a combination of Lactobacillus ferment, Saccharomyces ferment and lactic acid.

Technical area

The present invention relates to a deodorant and / or antiperspirant composition based on a combination of Lactobacillus ferment, Saccharomyces ferment and lactic acid and its cosmetic use in humans.

State of the art

Sweating, also known as sweating, is a natural phenomenon whose main function is to keep the body at a stable temperature. Sweating is the evacuation of skin pores, water and solutes in the form of sweat. Regular sweating allows the body to maintain the right temperature when it is hot or when the body is overheated (fever or physical effort). Sweat is produced by the 2 to 5 million sweat glands distributed on the surface of the skin. In man, there are two kinds of sweat glands, eccrine and apocrine. The eccrine sweat glands are by far the most numerous and can be found almost all over the body but especially on the palms of the hands, on the soles of the feet and on the forehead. The sweat they produce play a role in skin hydration and microbiological protection. The apocrine sweat glands are located mainly under the armpits and the genitals. They are larger than the eccrine glands and are associated with the hair system. They produce a whitish liquid consisting mainly of lipids. Their secretion is regulated psychically. The apocrine sweat glands do not manifest until puberty.

Human skin is colonized by a diverse microbial community. This microbiota is an essential element for the maintenance of healthy skin and the fight against pathogenic elements. If this bacterial population is necessary for the regulation of immune function, it can also become pathogenic or cause some discomfort as is the case during heavy perspiration. The sweat produced by the sweat glands is little or not fragrant when secreted. It is its degradation by the bacteria present on the surface of the skin which induces the formation of bad smells.

The axillary region has a high density of sweat glands. This wet and poorly ventilated region is colonized by a specific microbiome rich in gram-positive bacteria, such as Corynebacteria and Staphylococci. It is these bacteria that degrade sweat and produce malodorous volatile compounds.

Deodorants and antiperspirants are the two categories of products used to reduce perspiration and its side effects. They are particularly sought after for their action against the perspiration odors considered socially unacceptable. These products use bactericidal and / or sweat reducing compounds that are at the heart of many controversies, such as the one surrounding the safety of aluminum salts. The need to feel good in a sustainable manner is now being challenged by the controversy surrounding the use of many deodorant / antiperspirant products of compounds deemed dangerous by many consumers. However, the formulas on the market without aluminum salts and based on natural active ingredients have only a limited effect against the emission of odor. There is therefore a real need for alternative solutions offering effective protection in terms of odor and / or perspiration itself.

Biotechnology research has opened new avenues to consider the replacement of traditional chemical assets with enzymes or bacteria resulting from fermentation for the control of odor molecules as well as for targeted bacteriostatic action.

Thus, the published patent application EP 1 110 555 A1 describes the use of a bacterial agent chosen from Lactobacillus strains capable of stabilizing and / or regulating the pathogenic flora of the cutaneous system, said bacterial agent being an extract of bacteria. or a bacterium selected for its adhesion to skin cells and its anti-adhesive properties vis-à-vis the pathogens of the cutaneous system. The Korean patent (Korean Patent Registration Nos. 10-0536456 and 10-0581738) has demonstrated the same preventive effect on the foul odors of certain Lactobacillus strain ferments that inhibit pathogenic bacteria. This is also the case of US Pat. No. 8257960 B2 describing the anti-odor effect of Saccharomyces on organic waste.

detailed description

The present invention relates to the creation of deodorant and / or antiperspirant cosmetic products for the prevention of unpleasant odors related to perspiration by the combination in a cosmetic formula of Lactobacillus ferment, Saccharomyces ferment and lactic acid without recourse. the chemical compounds usually used in conventional deodorant formulations for their bactericidal, deodorant and / or antiperspirant effects. The cosmetic compositions according to the invention are preferably intended for topical use in the areas of perspiration of the skin.

A deodorant lotion for preventing perspiration odors in the axillary region over a long period of time has been formulated to achieve the objects of this invention, a lotion having a pH of from 2 to 5 which contains, in order of weight of water, 80 to 90%, glycerin in a proportion of 6 to 9%, lactic acid in a proportion of 3 to 5%, Lactobacillus ferment in the proportion of 1 to 4%, ferment of Saccharomyces in the proportion of 0.5 to 3%, of potassium sulphite in the proportion of 0.05% and 1%, of benzyl alcohol in the proportion of 0.3 to 0.7%, a perfuming element in the proportion of 0.5%, dehydroacetic acid of 0.02 to 0.08%.

The deodorant composition according to the invention has the property of reducing the production of malodorous molecules over a long period. This deodorant property over a long period of time (FIG. 1) was demonstrated by a use test (Example 1) carried out with volunteers applying the deodorant composition to the zone of axillary sweating.

The deodorant composition according to the invention has an effect locally at the level of the zone where it is applied.

A deodorant composition according to the invention is particularly suitable for topical use in the areas of perspiration, such as underarms, feet and more generally all of the skin and scalp.

The designated skin, broadly, the skin, the scalp and the mucous membranes.

In an advantageous embodiment, the deodorant composition is combined with an antiperspirant active agent and / or with another deodorant agent and / or with an odor-absorbing agent. By another deodorant agent is meant an agent which is not a ferment of lactobacillus or saccharomyces and acts as an antiseptic such as Caprylyl glycol or propylene glycol. By antiperspirant agent is meant an agent which acts by causing a slight inflammation of the sweat duct or by creating a plug at the sweat pores thus reducing sweat secretion. By way of non-limiting example: Potassium alum, Aluminum potassium sulfate dodecahydrate, Aluminum chlorohydrate, Aluminum zirconium tetrachlorohydrate. By odor-absorbing agent is meant, for example, Citronellyl methyl crotonate, Zinc ricinoleate or Zeolite.

In a particular embodiment, the deodorant composition does not include lactobacillus ferment.

In a particular embodiment, the deodorant composition does not include a saccharomyces ferment.

In a particular embodiment, the composition does not comprise lactic acid.

In a particular embodiment, the composition does not comprise potassium sulphite.

In a particular embodiment, the composition does not comprise dehydroacetic acid and benzyl alcohol.

In a particular embodiment, the composition does not include a perfuming element.

In a particular embodiment, other preservatives are added in the composition

In a particular embodiment, emulsifying agents are added to the composition

In a particular embodiment, essential oils are added to the composition

In a particular embodiment, astringent agents are added to the composition

In a particular embodiment, antiperspirant agents are added to the composition.

In a particular embodiment, moisturizing agents are added to the composition

In a particular embodiment, plant extracts are added to the composition

In a particular embodiment, antioxidants are added to the composition

In a particular embodiment, absorbing agents are added to the composition

In a particular embodiment, antibacterial agents are added to the composition.

In a particular embodiment, the composition is in the form of a lotion, liquid, cream, gel, bread, stick, paste or powder.

In a particular embodiment, the composition according to the invention is added to the formula of all cosmetic products in order to give a deodorant function to them. Examples of non-limiting examples of moisturizing creams for the body or feet, shampoos, shower gels, soaps, anti-friction creams or irritations.

The deodorant lotion according to the invention may be packaged in spray, aerosol, wipe, roll-on or any other appropriate packaging.

Figure 1

Presentation of the result of the duration of effectiveness of the deodorant lotion made according to the invention applied to the axillary area and found by use test on a sample of 10 testers. In the histogram, the blue column indicates an efficacy of 48 hours at 72 hours (48H-72H), the red column 72 hours (72H), the green column 96 hours (96H), the purple column more than 120 hours (> On the y-axis, the percentages represent the percentage share of the 10-person sample.

Example 1: Deodorant effect of the composition based on a combination of Lactobacillus ferment ferment, Saccharomyces ferment and lactic acid.

Materials and methods

A deodorant lotion for preventing perspiration odors in the axillary region over a long period of time has been formulated according to the invention, the lotion having a pH of between 2 and 5 which contains, in order of weight, water in a proportion of 80 90%, glycerine in a proportion of 6 to 9%, lactic acid in a proportion of 3 to 5%, a Lactobacillus ferment in the proportion of 1 to 4%, a ferment of Saccharomyces in the proportion of 0.5 to 3%, potassium sulphite in the proportion of 0.05% and 1%, benzyl alcohol in the proportion of 0.3 to 0.7%, a perfume element in the proportion of 0.5%, dehydroacetic acid of 0.02 to 0.08%.

This lotion has been packaged in spray bottles.

A test under dermatological control was carried out on a dozen volunteers. The test protocol was as follows: Application of the deodorant lotion under the armpits after the shower. Then observation of the effect of the product on perspiration odors. The testers reported on a table (Table 1) the result found according to a score ranging from 1 to 3: No smell of perspiration = score 1; low sweating odor = 2; odor of embarrassing perspiration = 3

The testers were advised to wash as usual and reapply as soon as the smell of their perspiration was bothering them again, then observe the following days the effect after this second application. Results

After application of the deodorant lotion, the reappearance of perspiration odors (uncomfortable odor) occurs after 48 hours in most cases, in male or female testers. For 20% of the sample, the efficacy is greater than 120 hours (see Figure 1). The lotion according to the invention thus provides an efficacy against odors greater than that generally found with natural deodorant products.

Table 1: results of use test over 7 consecutive days

Scores 1, 2 and 3 in the columns Day 1, Day 2, Day 3, Day 4, Day 5, Day 6 and Day 7 correspond to: No smell of perspiration = score 1; low sweating odor = 2; odor of embarrassing perspiration = 3

Claims (9)

1) Deodorant and / or antiperspirant cosmetic composition based on a combination of a Lactobacillus ferment, a Saccharomyces ferment and lactic acid. 2) cosmetic deodorant composition according to claim 1 wherein the composition is a lotion with a pH of between 2 and 5 which contains, in order of weight of the water in a proportion of 80 to 90%, glycerine in a proportion of 6 to 9%, lactic acid in a proportion of 3 to 5%, a Lactobacillus ferment in a proportion of 1 to 4%, a Saccharomyces ferment in a proportion of 0.5 to 3%, sulphite of potassium in the proportion of 0.05% and 1%, benzyl alcohol in the proportion of 0.3 to 0.7%, a scent element in the proportion of 0.5%, dehydroacetic acid of 0 0.0 to 0.08%. 3) Composition according to any one of the preceding claims which is combined with an antiperspirant active agent and / or another deodorant agent and / or an odor-absorbing agent and / or an absorbent agent. 4) Composition according to claim 1 which is formulated without potassium sulfite. 5) Composition according to claim 1 which is formulated without dehydroacétique acid and benzyl alcohol. 6) Composition according to any one of the preceding claims which is in the form of cream, gel, bread, stick or powder. 7) Composition according to any one of the preceding claims which is packaged in spray, aerosol, wipe, roll-on or other suitable packaging. 8) Use of the composition according to claim 1 which by topical application avoids perspiration odors in sweat areas, such as underarms, feet and more generally the entire skin and scalp . 9) Use of the composition according to one of claims 1 to 7 which may be added in the formulation of any deodorant cosmetics.