Quaterate is a modified acrylic acid derivative that not only overcomes the instability of curric acid to light, heat and metal ions, but also maintains the activity of inhibiting tyrosine enzymes and preventing the formation of melanin.<br>The esters have stable chemical properties. It does not turn yellow due to oxidation, metal ions, light and heating. As a fat-soluble skin whitening agent, it is more easily absorbed by the skin.<br>The recommended dosing of acrylic acid and palmic acid in cosmetics is 1-5%, and the recommended dosing of whitening products is 3-5%.
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