Cosmetic stick composition comprises a lipid or wax, a nonionic oil-in-water emulsifier, a nonionic water-in-oil emulsifier, an oil, a polyol or polyethylene glycol, water and cosmetic ingredients

摘要

Cosmetic stick composition in the form of a water-in-oil dispersion or emulsion comprises a lipid or wax, a nonionic oil-in-water emulsifier with a hydrophilic-lipophilic balance (HLB) of more than 7, a nonionic water-in-oil emulsifier with a HLB of 1-7, an oil with a defined solubility parameter, a polyol or polyethylene glycol, water and selected cosmetic ingredients. An independent claim is also included for producing a composition as above by melting the wax and oil components together with the emulsifiers at 90-95[deg]C, adding the water (also heated to 90-95[deg]C) and the water-soluble ingredients while stirring, adding any other ingredients, cooling the mixture, pouring it into dispenser molds, and cooling it to room temperature under static conditions. Cosmetic stick composition in the form of a water-in-oil dispersion or emulsion comprises a lipid or wax component with a mleting point above 50[deg]C; a nonionic oil-in-water emulsifier with a hydrophilic-lipophilic balance (HLB) of more than 7 within an oil-in-water emulsifier mixture with a mean HLB of 10-19; a nonionic water-in-oil emulsifier with a HLB of 1-7 capable of forming a liquid crystal structure with water; an oil that is not a perfume or an essential oil and has a solubility parameter, in (cal/cm3>)0.5>, that differs from that of the emulsifiers by a maximum of -0.7 or +0.7 in the presence of a fatty alcohol with a chain length of at least 8 carbon atoms and by a maximum of -0.4 or +0.7 in the absence of the fatty alcohol; a water-soluble polyhydric alkanol with 2-9 carbon atoms and 2-6 hydroxy groups or a polyethylene glycol with 3-20 ethylene oxide groups; 5-50 wt.% water; and cosmetic ingredients selected from monomers, oligomers and polymers of amino acids, N-acyl amino acids and their esters and salts; DNA or RNA oligonucleotides; moisturizers; A, B, C, E, H and K vitamins, provitamins, vitamin precursors and their esters; alpha -hydroxy carboxylic acids, alpha -keto carboxylic acids, R-hydroxy carboxylic acids and their esters, lactones or salts; flavonoids, isoflavonoids, polyphenols or flavonoid-, isoflavonoid- or polyphenol-rich plant extracts; ubiquinone, ubiquinol and derivatives thereof; silymarin; caffeine, theophylline, theobromine or aminophylline; ectoin; UV filters; self-tanning, skin-lightening, skin-soothing, sebum-regulating, antimicrobial and prebiotic agents; and coloring, matting or glossing pigments. The composition contains a total of 8-20 wt.% emulsifiers.