| abstract |
(57) [Problem] To provide a cosmetic raw material containing an active ingredient in a crude wood vinegar liquid by removing a biologically harmful substance contained in the crude wood vinegar liquid. SOLUTION: A mixture of crude wood vinegar and a cosmetic raw material selected from hydrocarbons, fats, waxes and higher fatty acids under heating is mixed with formaldehyde and methanol, which are biologically harmful components contained in the crude wood vinegar. By removing the strong acid component of the skin irritating substance, the active ingredient in the crude wood vinegar solution is transferred into the cosmetic raw material, and if necessary, further treated with an acidic salt aqueous solution to make the cosmetic raw material safer. Yes, it can be used for washing, hair, foundation, make-up, aroma, sunburn / sunscreen, nails, eyeliner, lips, oral cavity, bath cosmetics. |