| 摘要 |
PROBLEM TO BE SOLVED: To obtain an external preparation for improving chapped skin having improving and preventing effects on chapped skin and suffering from chapped skin caused by various dermatoses such as contact dermatosis, psoriasis, etc. SOLUTION: This external preparation for improving chapped skin comprises 0.005-20wt.%, preferably 0.01-10wt.% calculated as a dried material of an extract of cola de caballo growing in a dry meadow, a pasture, etc., of South America, especially Andes based on the total of the external preparation as an active ingredient. The external preparation is properly mixed with conventional components used in a skin preparation for external use such as a cosmetic, medical supplies, etc., besides the active ingredient, to prepare an ointment, a cream, a milky lotion, a lotion, pack, a bathing agent, etc. The extract of cola de caballo is obtained by immersing the whole grass of cola de caballo such as leaf, stem, fruit, etc., in an extractive solvent (e.g. methanol) or heating under reflux, filtering and concentrating. |
