Depilatory wax composition, method for obtaining same and use thereof

Abstract

The present invention relates to a fat-soluble depilatory wax composition which includes hydrophilic cosmetic active agents adding cosmetic properties to treatment for the purpose for which this composition is used. In other words, the present invention relates to the method for obtaining said composition and to the use thereof for simultaneously depilating and treating skin.

Claims

1. A depilatory composition consisting of: 60% to 70% by weight with respect to the total weight of the composition of synthetic resins selected from the group consisting of petroleum resin and colophony resin; 1% to 15% by weight with respect to the total weight of the composition of a carrier; 0.01% to 15% by weight with respect to the total weight of the composition of a hydrophilic cosmetic active agent, wherein the carrier introduces the active agent into the depilatory composition, and wherein the carrier is obtained by reaction of liquid jojoba wax, mimosa wax and sunflower wax with polyglycerol-3 esters.

2. The composition according to claim 1, wherein the hydrophilic cosmetic active agent is a component of the human extracellular matrix.

3. The composition according to claim 1, wherein the cosmetic active agent is hyaluronic acid.

4. A method for simultaneously depilating and treating skin comprising applying the composition of claim 1 to the skin to be treated thereby depilating and treating the skin.

5. A method for simultaneously depilating and treating skin comprising applying the composition of claim 2 to the skin to be treated thereby depilating and treating the skin.

6. A method for simultaneously depilating and treating skin comprising applying the composition of claim 3 to the skin to be treated thereby depilating and treating the skin.

Description

DETAILED DESCRIPTION OF THE INVENTION

(1) As mentioned above, the first aspect of the invention relates to a fat-soluble depilatory composition.

(2) In a preferred embodiment, the composition of the invention includes plasticizing agents providing flexibility to the product. In the present invention, the term plasticizing agent is understood as a material that is incorporated to provide ductility.

(3) Therefore in one embodiment of the invention, the depilatory composition described in the first aspect of the invention comprises between 5% and 20% of a plasticizing agent.

(4) In a particular embodiment, the composition of the invention includes emollients, thickeners, preservatives and dyes.

(5) In a particular embodiment, the agent of inclusion is an esterification of a mixture of natural waxes selected from mimosa wax, candelilla wax, rice wax, sunflower wax. The liquid wax is preferably jojoba wax. In addition to allowing the introduction of the hydrophilic active agents, this set of waxes has a very significant moisturizing effect. More particularly, the carrier is obtained by the reaction of liquid jojoba wax and solid waxes; mimosa wax and sunflower wax and polyglycerol-3 esters.

(6) Examples of hydrophilic cosmetic active agents are the compounds of the human extracellular matrix, for example, collagen fibers; elastin fibers; glycosaminoglycans such as hyaluronic acid, chondroitin-4-sulfate, chondroitin-6-sulfate, dermatan sulfate, heparan sulfate, keratan sulfate; proteoglycans; adhesive glycoproteins such as fibronectin, laminin, entactin, tenascin, chondronectin. Other cosmetic active agents such as natural moisturizing factor and DNA sodium salt of marine origin can also be incorporated.

(7) Finally, a third aspect of the invention is the cosmetic use of the composition of the invention described in the preceding paragraphs for simultaneously depilating and treating skin.

EXAMPLES

Example 1

(8) A reactor was programmed at a temperature comprised between 120 C. and 125 C. The reactor has stirring means, a turbine and a heater.

(9) Paraffins and microcrystalline waxes were added to the reactor, maintaining the temperature between 120 C. and 125 C. Stirring was started and the mixture was allowed to again reach the set temperature of 120 C.-125 C.

(10) The temperature was maintained at 120 C.-125 C. and a hydrocarbon resin was added little by little under stirring to prevent a temperature drop and solid mass formation at the bottom of the reactor.

(11) The plasticizers were added, once the ingredients were melted and mixed, and maintaining the temperature and stirring.

(12) The dyes were added. The activated turbine was maintained until all the components are completely dispersed.

(13) Hyaluronic acid and the lipophilic agent of inclusion obtained by the reaction of liquid jojoba wax and solid waxes; mimosa wax and sunflower wax of the Acticire brand name marketed by Gattefosse under CAS number 68953-55-9, are added in another vessel, maintaining the temperature below 75 C. Once they were melted and mixed completely, after about three and a half to four hours, they were added to the main reactor.

Example 2

(14) A mixture comprising the following is prepared:

(15) TABLE-US-00001 Compound Function Percentage Polyhydrogenated C.sub.6-20 Hydrocarbon resin 66.4 olefin Paraffin Base, emollient 14.0 Microcrystalline wax Thickener 7.37 Ethylene/vinyl acetate Plasticizer 6.23 copolymer Vinyl acetate Plasticizer 4.53 Pentaerythrityl tetra-di-t- Preservative 0.61 butyl hydroxyhydrocinnamate Bis(2,2,6,6-tetramethyl-4- Preservative 0.61 piperidyl)sebacate Propylene glycol Preservative 0.12 Water Solvent 0.09 Mimosa/jojoba/sunflower Carrier 0.05 waxes and polyglycerol-3 esters Violet 2 CI60725 Dye 0.0040 Sodium hyaluronate Active ingredient 0.0038 Mica Dye 0.0009 Titanium dioxide CI77891 Dye 0.0004