Melanogenesis inhibitor comprising d-pantothenyl alcohol, and skin-whitening cosmetic containing same melanogenesis inhibitor
Provided is a new application for D-pantothenyl alcohol. It is a melanogenesis inhibitor comprising D-pantothenyl alcohol.
1. A skin-whitening cosmetic comprising D-pantothenyl alcohol and one or more selected from the following skin-whitening agents (A) to (D), wherein the combination of D-pantothenyl alcohol and the skin-whitening agent selected from (A) to (D) provides synergistic skin-whitening effects:
(A) a 4-butyl resorcinol;
(B) one or more selected from the following compounds 1, 2, 13, 30, 31, 33, 45, 47 and 49:
(C) an ursolic acid phosphate ester; and
(D) a salt of the (A), (B) or (C).
2. A skin-whitening method, comprising the steps of whitening skin by contacting D-pantothenyl alcohol with the skin; and whitening the skin by contacting one or more selected from the group consisting of the following skin-whitening agents (A) to (D) with the skin, wherein the combination of D-pantothenyl alcohol and the skin-whitening agent selected from (A) to (D) provides synergistic skin-whitening effects:
(A) a 4-butyl resorcinol;
(B) one or more selected from the following compounds 1, 2, 13, 30, 31, 33, 45, 47 and 49:
(C) an ursolic acid phosphate ester; and
(D) a salt of (A), (B) or (C).
3. The skin-whitening cosmetic according to claim 1 , wherein the content of skin whitening agent selected from (A) to (D) in the skin-whitening cosmetic is 0.1 to 3% by mass.
4. The skin-whitening cosmetic according to claim 1 , wherein the skin whitening agent (B) is one or more selected from the following compounds 1, 31, and 45:
5. The skin-whitening cosmetic method according to claim 2 , wherein the skin whitening agent (B) is one or more selected from the following compounds 1, 31, and 45: