Deep Power Ringer Mask Pack #Collagen (10ea)

These describe what an ingredient is, not whether it is a problem. The stance marks above are the ratings; these are not.

• commonly dryingHamamelis Virginiana Extract

  • Hamamelis Virginiana Extract: A tannin-rich astringent; the distillate sold under this name usually carries added alcohol, which is where the dry finish comes from. United States Pharmacopeia monograph "Witch Hazel", USP-NF version 02_01, DOI 10.31003/USPNF_M89070_02_01. The public DOI landing page carries a 2018 copyright and shows the definition, "Witch Hazel is a clear, colorless distillate prepared from recently cut and partially dried dormant twigs of Hamamelis virginiana L."; the specification, a distillate to which "150 mL of alcohol" is added per 850 mL at 14,0% to 15,0% ethanol, sits behind the USP subscription paywall. The monograph governs the pharmacopoeial article, not every product that prints this INCI name.

• rich occlusiveDimethicone

  • Dimethicone: A silicone that forms a film on the surface of the skin without an oily feel. FDA OTC skin protectant monograph, 21 CFR 347.10(g), lists dimethicone as a skin protectant at 1 to 30%.

• humectantGlycerin

  • Glycerin: A humectant, and one of the two ingredients a comparison of moisturiser components found made a significant difference to skin hydration. FDA OTC skin protectant monograph, 21 CFR 347.10(h), lists glycerin as a skin protectant at 20 to 45%. On the humectant half: Jeong CB, Han JY, Cho JC, Suh KD, Nam GW, "Analysis of electrical property changes of skin by oil-in-water emulsion components", Int J Cosmet Sci 2013;35(4):402-410, DOI 10.1111/ics.12059, PMID 23621673, found that "glycerine and urea showed significant skin hydration effects compared with other humectants".