Synergistic antioxidant combinations of herb extracts and methods relating thereto
View Patent ↗The present invention comprises mixtures of herb extracts which exert synergistic antioxidant effect and comprise the herb licorice and at least one other herb selected from the group consisting of ginger, kudzu, sophora, and thyme. Skin care preparations incorporating such herb extract mixtures, and their methods of preparation and use, are also claimed.
1. A skin care composition comprising a mixture of ginger and licorice extracts which exerts synergistic antioxidant effect and in which the ginger and licorice are within the concentration range of 3.0 μg/ml≦C Ginger ≦35.0 μg/ml, 3.0 μg/ml≦C Licorice ≦12.0 μg/ml.
2. A skin care composition of herb extracts which provides synergistic antioxidant effects, comprising a mixture of licorice and ginger extracts having a concentration falling approximately within the area marked A in the chart shown in FIG. 1 hereof.
3. A skin care preparation comprising a base medicinally acceptable for dermal application having mixed therein the composition of herb extracts as defined in claim 1 .
4. A skin care preparation comprising a base medicinally acceptable for dermal application having mixed therein the composition of herb extracts as defined in claim 2 .