| 摘要 |
A composition for regulating skin pH concentration is provided to regulate the skin pH concentration with weak acidity using lactic acid, pyrrolidone carboxylic acid and amino acid, and enhance the elasticity and moisturization. A composition for regulating skin pH concentration comprises two or more components selected from lactic acid or its salt, pyrrolidone carboxylic acid or its salt, and amino acid. The lactic acid salt is one or more selected from sodium lactate, lactic acid copper, lactic acid aluminum, magnesium lactate and calcium lactate. The pyrrolidone carboxylic acid is one or more selected from sodium pyrrolidone carboxylic acid, potassium pyrrolidone carboxylic acid, pyrrolidone carboxylic acid copper, pyrrolidone carboxylic acid calcium, pyrrolidone carboxylic acid aluminum and pyrrolidone carboxylic acid zinc. The pyrrolidone carboxylic acid or its salt is contained in 0.01-10 weight part based on 100 weight part of total composition. The amino acid is one or more selected from lysine, histidine, arginine, aspartic acid, threonine, serine, glutamic acid, proline, glycine, alanine, and the methionine, isoleucine, leucine, tyrosine, phenylalanine, half cysteine, cysteine, asparagine, glutamine and tryptophan.
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