Cosmetic product containing enzymes

Details Cosmetic product containing enzymes Cosmetic product containing enzymes

2001-12-05

2003-04-22

Padmanabhan, Sreeni (Department: 1617)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Cosmetic, antiperspirant, dentifrice

C424S070100, C424S074000, C424S725000

Reexamination Certificate

active

06551606

ABSTRACT:

This application is a 371 of PCT/DE00/01891, submitted Jun. 8, 2000.
FIELD OF THE INVENTION
The invention relates to a cosmetic product that contains enzymes and has an intensive skin action, especially a regenerative effect.
DESCRIPTION OF THE RELATED ART
There is already a number of known cosmetic products which are produced using animal milk or a derivate of lactic acid. DE-A-44 08 258, for example, discloses an oil/water emulsion containing whole milk, which emulsion contains polyethoxylated vitamin E as an emulsifier and has a viscosity of less than 100 Pa·s. DE-A-195 37 297 discloses cosmetic preparations containing growth factors which are produced from fresh or pasteurized milk and colostrum of cows and mares. Furthermore, EP-A-908171 discloses a dry, plant-based cleansing composition, in which various dried and crushed plants, which serve as detergent, foaming agent, foam enhancer, pigment and conditioner, are combined in a powder,
Cocos nucifera
being used as a foam enhancer.
SUMMARY OF THE INVENTION
The object of the invention is to provide a particularly mild cosmetic product which has soothing, regenerative and, at the same time, moisturizing properties.
According to the invention, a cosmetic product containing enzymes is provided, characterized in that it contains 0.01 to 5% by weight of a concentrate of the coconut milk of
Cocos nucifera
, containing peroxidase, lipase and protease; 0.01 to 10% by weight of a plant milkwater, the plants being selected from the group consisting of Musa (bananas), Taraxacum (dandelion), Convolvulus (Convolvulaceae), Papaver (poppy), soya and mixtures thereof; 0.01 to 5% by weight of a glycerol extract of a mixture consisting of honey, rice hulls, rice hull oil and/or rice germ oil; 99.97 to 80% by weight of cosmetic auxiliary agents, further active agents and carrier substances.
The plant milkwater according to the invention is obtained by pressing the fresh overground parts of the plants (stems, leaves, flowers), preferably of plants whose period of flowering is over, and it is used directly in the cosmetic product after removing solid components, if any. The term “plant milkwater” is used to refer to the usually milky latexes which are obtainable by cold pressing the relevant plant parts. Preferred plant milkwaters are those of dandelion and soya.
The enzymes contained in the coconut milk concentrate are highly effective with regard to several aspects. Lipase causes fatty acid triglycerides to break down into fatty acids and glycerol thus accelerating the liposysis of these substances and enabling them to be better discharged via the blood. If combined with protease, which plays a key role in the regeneration of the skin, the cells can be made to regenerate more rapidly, and due to the proteolytic effect, it is possible to promote and accelerate the regeneration of skin cells and the healing of wounds of the skin.
Peroxidase has scavenging properties and occurs in increased amounts in plants which are exposed to intense environmental stress such as ozone, air pollution, radiation, changed availability of nutrients. Peroxidase converts free OH radicals and peroxides into water and harmless substances thus achieving a noticeable anti-ageing effect with regard to skin cells.
The coconut milk concentrate, which may also be obtained by means of an extraction process using propylene glycol, may further contain cytokinin, which positively influences the regeneration of the skin as it stimulates cell division.
Altogether, the three active agents which are present in the cosmetic product containing enzymes according to the invention have an overall effect as regards the regeneration process of the skin, which is much stronger than the individual effects of the components. The said active agents are therefore particularly suitable for regeneration creams, anti-ageing creams and lotions, after-sun creams, fat reduction creams and firming creams.
In addition, the cosmetic product has excellent moisturizing, pH-adjusting and soothing effects, which, in combination with the above-mentioned properties, result in a very good feeling.
It is particularly worth mentioning that the cosmetic product according to the invention promotes the physiological hydration process of the skin. Measurements using a Corneometer® show a clear, long-lasting effect, i.e. in a measurement carried out after 8 hours, it was found that the increase in moisture achieved by applying a lotion had decreased by just 4-12%.
The cosmetic auxiliary agents and carrier substances, as they are commonly used in preparations similar to the cosmetic product at hand, include e.g. water, preservatives, vitamins, colourants, pigments having a colouring effect, scavengers, thickeners, softening substances, moisturizing substances, fragrances, alcohols, polyols, electrolytes, esters, gel-forming agents, polar and nonpolar oils, polymers, copolymers, emulsifiers, waxes, stabilizers.
Further additives and active agents contained in the cosmetic compositions may be vitamins or vitamin complexes, e.g. vitamin A or derivates thereof and/or vitamin E or derivates thereof; further biogenic plant extracts such as liposoluble gardenia extract, liposoluble carrot extract, paprika-LS extract, &bgr;-carotene, Lithospermum extract; organic sunscreens such as e.g. octyl methoxycinnamate; methyl gluceth-10 or methyl gluceth-20; and active deodorants such as triclosan or odour extinguishers such as Grillocin®.
The cosmetic active agents further include emulsifiers, inorganic and organic sunscreens, scavengers, enzymes, plant-based active agents, polymers, melanin, antioxidants, anti-inflammatory natural active agents, asymmetric lamellar aggregates loaded with oxygen according to WO94/00109; decomposition products of yeasts or plant substances produced by means of a gentle decomposition process using ultrasound according to WO94/13783, kaolin and kaolin modified with SiO
2
according to WO94/17588, a product obtained by gently decomposing a vegetable or animal starting material in an aqueous medium and subsequently condensing it with a sub-stoichiometric amount of a C
10
-C
20
fatty acid halogenide according to WO96/29048.
Suitable esters or ethers are, for example (INCI names): dipentaerythrityl hexacaprilate/hexacaprate/tridecyl trimellitate/tridecyl stearate
eopentyl glycol dicaprylate dicaprate, propylene glycol dioctanoate-5, propylene glycol dicaprylate-2,30-dicaprate, tridecyl stearate
eopentyl glycol dicaprylate dicaprate/tridecyl trimellitate, neopentyl glycol dioctanoate, isopropyl myristate, diisopropyl dimer dilinoleate, trimethylpropane triisostearate, myristyl ether, stearyl ether, butyl ether, dicaprylyl ether, PPG1-PEG9 lauroyl glycol ether, PPG15 stearyl ether, PPG14 butyl ether, Fomblin HC25.
The cosmetic product containing enzymes may have the form of an O/W emulsion or a W/O emulsion. The oils used may be usual cosmetic oils such as a mineral oil; hydrogenated polyisobutene (INCI name: Hydrogenated Polyisobutene); squalane, both synthetic and made from natural products (INCI name: Squalane, e.g. Synthesqual®, Cosbiol®); cosmetic esters or ethers, which may be branched or linear, saturated or unsaturated; vegetable oils; or mixtures of two or more thereof.
Particularly suitable oils are, for example, mineral oils, hydrogenated polyisobutene, polyisoprene, squalane, tridecyl trimellitate, trimethylpropane triisostearate, isodecyl citrate, neopentyl glycol diheptanoate, PPG15 stearyl ether, calendula oil, jojoba oil, avocado oil, macadamia nut oil, castor oil, or a mixture of several thereof. Depending on which oils are selected, the cosmetic properties of the solid composition, such as the degree of transparency, softness, hardness, spreading effect, are influenced.
The cosmetic product may also have the form of a gel. Suitable gel-forming agents include carbomer, xanthan gum, carrageenan, gum arabic, guar gum, agar-agar, alginates and tylosen, carboxymethyl cellulose, hydroxyethyl cellulose, certain polyacrylates, polyvinyl alcohol, polyvinyl pyrrolidone, montmorrillonite, etc.

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