MW:300.479

Polyhydroxystearic acid is a polymer of hydroxystearic acid obtained from castor oil.

https://www.makingcosmetics.com/Polyhydroxystearic-Acid_p_1247.html

Synthetic polymer related to stearic acid that functions as a suspending agent.

https://www.paulaschoice.com/ingredient-dictionary/uncategorized/polyhydroxystearic-acid.html

比起油性更适合干性肌肤？

比起油性更适合干性肌肤？ 上面大错