| 摘要 |
PROBLEM TO BE SOLVED: To provide a hair cosmetic including an active ingredient having excellent living body safety derived from a natural product and also exhibiting excellent effect for maintenance and improvement of the health of hair.SOLUTION: A collagen synthesis promoter of hair papilla cells includes the extract of a Bignoniaceae Tabebuiasp. plant as an active ingredient. A hair cosmetic includes the promoter, and the color tone changes (pigment anomaly and depigmentation) of hair are prevented-improved based on the excellent collagen synthesis promotion action of hair papilla cells that the extract of a Tabebuiasp. plant as an active ingredient has. |
