| abstract |
The present invention provides a neuropterin production promoter and a moisturizer comprising a selected from the group consisting of Chenopodium hybridum, Melia toosendan, Indigofera tinctoria, Cirsium japonicum, and Catalpa ovata. And an extract of at least one plant of the group consisting of Tagetes erecta or a compound represented by the following formula (1) as an active ingredient:n□ (wherein R represents a thiol group having 1 to 5 carbon atoms). |