- Categories: Skin-Replenishing
Natural component of skin, PCA (pyrrolidone carboxylic acid) is also a very good hydrating agent. Sodium PCA also functions as a skin-replenishing ingredient.
References for this information:
Journal of Drugs in Dermatology, September 2014, pages 1,108-1,111
Bio-Medical Materials and Engineering, 1995, pages 9-20
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