Sodium polyaspartate is a synthetically made polymer from repeating aspartic acid units. Since aspartic acid is an amino acid, this polymer has protein-like properties.
As a cosmetic ingredient, sodium polyaspartate provides excellent humectant moisturizing and smoothing effects for the skin and hair, forming a soft and smooth film on the skin’s surface.
Science
1
Oshimura, E., & Sakamoto, K. (2017). Amino Acids, Peptides, and Proteins. Cosmetic Science and Technology, 285–303.
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Humectant
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