Cosmetic use of
Methods of protecting skin from damage due to cold thermal stress are disclosed. The methods include topically applying a composition that includes an Artemia salina extract from rehydrated Artemia salina cysts to skin at risk of damage from thermal stress, particularly from cold thermal stress or repeated temperature variations. The composition includes a physiologically acceptable medium for delivery of the Artemia salina extract.
1. A method of cosmetic care to protect the skin of a human or animal from damage due to cold thermal stress, the method comprising:
topically applying at least once or twice daily for at least two days, on at least one portion of the skin of the body or face of the human or animal which has been subjected to cold thermal stress, a composition comprising a physiologically acceptable medium and an Artemia salina extract obtained from rehydrated Artemia salina cysts,
wherein the Artemia salina extract is present in the composition at a concentration of about 0.0001% to about 20% of the total weight of the composition, and the cells of the at least one portion of skin of the body or face of the human or animal maintain a physiological level of cold-inducible RNA-binding protein.
2. The cosmetic care method according to claim 1 , wherein said Artemia salina extract is diluted in one or more physiologically suitable solvents, chosen from among water, glycerol, ethanol, propanediol, butylene glycol, dipropylene glycol, ethoxylated diglycol or propoxylated diglycol, cyclic polyols or any mixture of these solvents.
3. The cosmetic care method according to claim 1 , wherein said Artemia salina extract is present at a concentration of about 0.05% to about 5% of the total weight of the composition.
4. The cosmetic care method according to claim 1 , wherein the composition further comprises at least one additional active agent chosen from among vitamin A, retinoic acid, retinol, vitamin B3, vitamin B5, vitamin B6, vitamin B12, vitamin C, vitamin E, vitamin F, vitamin H, vitamin K, vitamin PP, coenzyme Q10, metalloproteinase inhibitors, amino acids, carnitine, carnosine, taurine, natural or synthetic peptides, vegetable peptide extracts, yeast extracts, natural or synthetic phystosterols, salicylic acid, oligosaccharides, polysaccharides, amino sugars, polyphenols, flavonoids, lipids, phospholipids, cyclic AMP and its derivatives, activator agents of the enzyme adenylate cyclase and inhibiting agents of the enzyme phosphodiesterase, theine, theophylline, theobromine, forskolin, esculin, ACE inhibitors, dioscorea extract, guarana extract, ivy extract, fucus extract, seaweed extracts such as Palmaria Palmata extract, hydrolyzed extract of Prunella vulgaris or elder extract.
5. The cosmetic care method according to claim 1 , wherein said Artemia salina extract is present at a concentration of about 0.01% to about 10% of the total weight of the composition.
6. The cosmetic care method according to claim 1 , wherein topically applying the composition comprises applying about 2 mg/cm 2 .