Cosmetic use of extracts of
View Patent ↗Methods in which an extract of Salvia miltiorrhiza roots is applied to the skin for a soothing cosmetic topical treatment. The invention also concerns a particular extract of Salvia miltiorrhiza roots, as well as compositions containing this extract and a cosmetic treatment method providing a soothing effect to the skin.
1. A method of treating sensitive skin, the method consisting of the step of: applying topically to the sensitive skin an effective amount of an extract of Salvia miltiorrhiza roots, wherein the extract is obtained by extracting Salvia miltiorrhiza roots with a water/butylene glycol mixture and wherein the extract does not contain molecules with a molecular mass exceeding 2000 Da.
2. The method of claim 1 , wherein the skin has been exposed to cold and/or pollution and/or a chemical stress.
3. The method of claim 1 , wherein the application of the Salvia miltiorrhiza root extract neutralizes the neuronal hyperactivity of the skin, and/or preserves the barrier function of the skin, and/or limits the inflammation of the skin.
4. The method of claim 1 , wherein the application of the Salvia miltiorrhiza root extract reduces cutaneous hypersensitive reactions and/or reduces sensation of the skin tightening.
5. The method of claim 1 , wherein the extract of Salvia miltiorrhiza root comprises at least 5% by weight of polyphenols in relation to the total weight of dry matter of the extract.
6. A cosmetic method of treatment of the skin, the method consisting of topically applying onto the skin a cosmetic composition comprising at least 0.25% by total weight of an extract of Salvia miltiorrhiza root comprising at least 5% by weight of polyphenols in relation to the total weight of dry matter of the extract;
wherein the extract further comprises butylene glycol and water, and thereby soothing the skin,
wherein the extract is obtained by extracting Salvia miltiorrhiza roots with a water/butylene glycol mixture, and
wherein the extract does not contain molecules with a molecular mass exceeding 2000 Da.
7. The cosmetic method of treatment of claim 6 , wherein the skin is sensitive skin.
8. The cosmetic method of treatment of claim 6 , wherein the skin has been exposed to cold and/or pollution and/or a chemical stress.