| abstract |
(57) [Summary] [PROBLEMS] To provide a method for inexpensively producing a collagen derivative which is soluble at pH 9 or less and has excellent compounding stability and transparency, and a cosmetic base for smoothing skin and hair. [Structure] A method for producing modified collagen, which comprises modifying the animal tissue containing collagen and then extracting the modified collagen, and a cosmetic base comprising the modified collagen. |