单词	polyhydroxy
释义	polyhydroxy adjective poly·​hy·​droxy ˌpä-lē-hī-ˈdräk-sē  : containing more than one hydroxyl group in the molecule Example Sentences Recent Examples on the Web For sensitive skin types, gentle chemical exfoliants that include PHAs (polyhydroxy acids) are ideal. Sarah Madaus, SELF, 9 Nov. 2021 Chlöe opts for the normal-and-combination skin formula, a 9 percent blend of AHAs and polyhydroxy acids (PHAs). Lindy Segal, Harper's BAZAAR, 29 Sep. 2021 Those with sensitive skin may want to look into the even gentler polyhydroxy acids (PHAs), Dr. Ngo says, and should avoid physical exfoliators like harsh scrubs containing pits or abrasive beads. Sarah Jacoby, SELF, 22 Aug. 2019 This cleanser is specially formulated with polyhydroxy acids (PHAs), a gentle acid suitable for sensitive skin types, to lightly exfoliate and help keep my blackheads and dead skin cells at bay. Kathleen Hou, The Cut, 9 Mar. 2018 Word History First Known Use 1895, in the meaning defined above Medical Definition polyhydroxy adjective poly·​hy·​droxy -hī-ˈdräk-sē  : containing more than one hydroxyl group in the molecule
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