Combinations of herb extracts having synergistic antioxidant effect, and methods relating thereto
View Patent ↗The present invention comprises mixtures of herb extracts, namely a mixture of the herb ginger and the herb sophora , which mixture exerts synergistic antioxidant effect. Skin care preparations incorporating such herb extract mixtures, and their methods of preparation and use, are also claimed.
1. A composition comprising a mixture of ginger and sophora extracts which exerts synergistic antioxidant effect and in which the ginger and sophora are within the concentration range of 0.5 μg/ml≦C Ginger ≦9.0 μg/ml, 2.0 μg/ml≦C Sophora ≦27.0 μg/ml.
2. A composition of herb extracts which provides synergistic antioxidant effect, comprising a mixture of ginger and sophora extracts having a concentration falling approximately within the area marked A in the chart shown in FIG. 2 hereof.
3. A skin care preparation comprising a base medicinally acceptable for dermal application and 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 and having mixed therein the composition of herb extracts as defined in claim 2 .
5. A method of making a skin care preparation, the method comprising admixing a base and the synergistic composition as defined in claim 1 .
6. A method of making a skin care preparation, the method comprising admixing a base and the synergistic composition as defined in claim 2 .
7. A method for caring for the skin comprising applying to the skin a skin care preparation as defined in claim 3 .
8. A method for caring for the skin comprising applying to the skin a skin care preparation as defined in claim 4 .