Plant-based anti-perspiration cosmetic

Details Plant-based anti-perspiration cosmetic Plant-based anti-perspiration cosmetic

2002-07-25

2003-03-18

Pryor, Alton (Department: 1616)

Drug, bio-affecting and body treating compositions

Anti-perspirants or perspiration deodorants

C514S558000

Reexamination Certificate

active

06534046

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention refers to an anti-sweat cosmetic which is suitable for use on the whole body and whose ingredients are almost entirely plant-based.
2. Description of the Related Art
Deodorizing cosmetics are used to at least temporarily conceal or absorb the odours produced by sweating of the human body. They are usually marketed in the form of solutions, powders or sticks.
EP 1002521 discloses a cosmetic containing sage extracts. DE-199 62 881 describes an anti-perspiration composition consisting of an anti-sweat agent, such as salts of Al, Zr or Zn, combined with a particulate, water-soluble polysaccharide and a wax. DE 4304284 discloses a deodorant based on lavender oil and horsetail extract.
SUMMARY OF THE INVENTION
The object of the invention is to provide a cosmetic containing plant-based active agents which absorbs the sweat given off by the body and temporarily conceals odours.
According to the invention, the anti-perspiration cosmetic consists of a mixture of 0.01 to 5% by weight of a mixture of the extract of the overground plant parts of
Equisetum arvense
and the essential oil of
Salvia officinalis;
0.01 to 5% by weight of a mixture of the extracts of
Hamamelis virginia
and
Quercus infectoria;
0.5 to 15% by weight of pulverized, bamboo wood (Bamboo Powder) the particle size of which is 15 &mgr;m or smaller; ad 100% by weight cosmetic auxiliaries, carrier substances or further active agents or mixtures thereof; all % by weight in relation to the cosmetic.
The extract of
Equisetum arvense
is obtained using propylene glycol at temperatures ranging from 20 to 40° C. The ratio of Equisetum to Salvia can be in the range of 20:80 to 80:20. Preferably, the mixture is present in the form of an aqueous solution in propylene glycol.
It is advantageous to add 0.01 to 2% by weight of a mixture of
Equisetum arvense
and
Salvia officinalis,
Equisetum also being able to be added as a separate ingredient.
The extract of
Hamamelis virginia
and
Quercus infectoria
is an extract obtained from the overground parts of the plants using propylene glycol at temperatures ranging from 20 to 40° C. The ratio of both constituents can be in the range of 5:95 to 95:5. Preferably, the mixture is present in the form of an aqueous solution in propylene glycol. It can additionally contain amino acids, such as Glycine, Arginine, Leucine and mixtures thereof.
Further, 0.01 to 2% by weight of an active agent can be contained selected from the group consisting of the essential oils of eucalyptus, lemon, myrrh, sandal and mixtures thereof.
Preferably, the Bamboo Powder used consists of pulverized medulla of
Bambusa arundinaceae
having a preferred medium particle size of about 5 &mgr;m and approximately 60% of the particles being in the range of 2-6 &mgr;m. This particular bamboo species is native to some Indian mountain woods and is particularly suitable for, absorbing sebum and texturizing cosmetic products. The Bamboo Powder preferably makes up 4-12% by weight. A particularly preferred product is Greensil of Greentech, St. Beauzire, France.
As a further active ingredient, the preparation can advantageously contain kaolin according to WO96/17588 which is modified with spherical TiO
2
or SiO
2
particles of a particle size of <5 &mgr;m, wherein the spherical particles have a proportion in the kaolin mixture of 0.5 to 10 wt. %. This imparts to the preparation a very soft skin feel and, additionally, an anti-inflammatory action.
The modified kaolin and can have a proportion of 0.1 to 15 wt. %, relative to the total weight of the product.
In one embodiment of the invention, a powder consisting of Methyl Methacrylate/Ethylen Glycol Bismethacrylate copolymer can be added, which powder has an average particle size of about 8 &mgr;m and is present in the form of macro-porous globules. The PMMA powder content can be in the range of 0.5 to 10% by weight.
The inventive preparation contains also cosmetic auxiliary and carrier substances as they are used conventionally in such compositions, for example, water, preservatives, colorings, pigments, polyols, such as Glycerine and Propylene Glycol and Butylene Glycol, esters or ethers, electrolytes, polar and non-polar oils, polymers, copolymers, emulsifiers, waxes, gels, stabilizers, amines, such as Triethanolamine, or mixtures thereof. The oils added should make up <5% by weight.
Further additives or active agents in the cosmetic compositions can be vitamins, e.g. Vitamin A or derivatives thereof; organic sunscreens, such as e.g. Octyl Methoxycinnamate; Methyl Gluceth 10 or Methyl Gluceth 20.
In another embodiment, an active agent contained in the cosmetic can be 0.01 to 2% by weight of Zinc Ricinoleate, which can also be added in a solubilized form together with Propylene Glycol, Triethanolamine and Lactic Acid.
Pigments, pigment mixtures or powders with a pigment-like effect, also including those with a pearl-gloss effect, may include, for example, iron oxides, aluminum silicates such as ochre, titanium (di)oxide, mica, kaolin, manganese containing clays such as umber and red bole, calcium carbonate, French chalk, mica-titanium oxide, mica-titanium oxide-iron oxide, bismuth oxychloride, nylon beads, ceramic beads, expanded and non-expanded synthetic polymer powders, powdery natural organic compounds such as milled solid algae, milled plant parts, encapsulated and non-encapsulated cereal starches and mica-titanium oxide-organic dye.
Suitable esters or ethers are, for example, (INCI designations): Dipentaerythrityl Hexacaprylate/Hexacaprate/Tridecyl Trimellitate/Tridecyl Stearate/Neopentyl 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, Cetearyl Octanoate, Butyl Ether, Dicaprylyl Ether, PPG1-PEG9 Lauroyl Glycol Ether, PPG15 Stearyl Ether, PPG14 Butyl Ether, Fomblin HC25.
Cosmetic oils used in small amounts can be vegetable oils, such as Calendula Oil, Jojoba Oil, Avocado Oil, Macadamia Nut Oil, Castor Oil, Wheatgerm Oil, Grapeseed Oil, Kukui Nut Oil, Thistle Oil, Evening Primrose Oil, Safflower Oil or a mixture of several thereof. Mineral oils can also be used.
Cosmetic gels can also be added. Suitable gel-forming agents include Carbomer, xanthan gum, carrageenan, acacia gum, guar Gum, Agar-Agar, alginates and tyloses, carboxymethyl cellulose, hydroxyethyl cellulose, quaternized cellulose, quaternized guar, certain polyacrylates, polyvinyl alcohol, polyvinylpyrrolidone, montmorillonite. Plant-based gels are preferred.
It is moreover advantageous to add to the compositions according to the invention corresponding water and/or oil soluble UVA or UVB filters or both. Advantageous oil-soluble UVB filters include 4-amino benzoic acid derivatives- such as 4-(dimethylamino)-benzoic acid-(2-ethylhexyl) ester; esters of cinnamic acid such as 4-methoxy cinnamic acid (2-ethylhexyl) ester, benzophenone derivatives such as 2-hydroxy-4-methoxy benzophenone; 3-benzylidene camphor derivatives such as 3-benzylidene camphor.
Preferred oil-soluble UV filters are Benzophenone-3,
Butyl-Methoxybenzoylmethane, Octyl Methoxycinnamate, Octyl Salicylate, 4-Methylbenzylidene Camphor, Homosalate and Octyl Dimethyl PABA.
Water-soluble UVB filters are, for example, sulfonic acid derivatives of benzophenone or of 3-benzylidene camphor or salts, such as Na or K salts, of 2-phenyl benzimidazole-5-sulfonic acid.
UVA filters include dibenzoyl methane derivatives such as 1-phenyl-4-(4′-isopropanol phenyl) propane-1,3-dione.
Preferred as sunscreen filters are inorganic pigments on the basis of metal oxides, such as TiO
2
, SiO
2
, ZnO, Fe
2
O
3
, ZrO
2
, MnO, Al
2
O
3
, which cane also be used in mixtures thereof.
Especially preferred as inorganic pigments are agglomerate substrates of TiO
2
and/or ZnO according to WO99/06012 which have a cont

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