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Arginine
精氨酸
Cas No:74-79-3; 7200-25-1
抗靜電劑、肌膚及頭髮調理劑,能強化角質及循環功能,使肌膚自身具有保溼能力。
2015-12-15

http://www.ewg.org/skindeep/ingredient/700503/ARGININE/

naturally occurring amino acid. COMPLETELY SAFE

A semi-essential (infants cannot synthesize it, but adults can) amino acid that is one of the primary building blocks of hair keratin and skin collagen. It's a natural moisturizing factor, a skin hydrator and might also help to speed up wound healing.
Arginine usually has a positive charge (cationic) that makes it substantive to skin and hair (those are more negatively charged surfaces) and an excellent film former. Thanks to the positive charge, it also creates a complex with AHAs (AHAs like to lose a hydrogen ion and be negatively charged, so the positive and the negative ions attract each other) that causes a "time-release AHA effect" and reduces the irritation associated with AHAs

https://incidecoder.com/ingredients/arginine

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