TY - CHAP M1 - Book, Section TI - Hyaluronic Acid A1 - Baumann, Leslie PY - 2015 T2 - Cosmeceuticals and Cosmetic Ingredients AB - Activities:Humectant, antiagingImportant Chemical Components:Hyaluronic acid (HA) is formed by repeating units of the disaccharides D-glucuronic acid and D-N-acetylglucosamine, which are linked to each other by alternating β-1,4 and β-1,3 glycosidic bonds. HA is composed of carbon, hydrogen, nitrogen, and oxygen (molecular formula: C14H21NO11). See Figure 26-1.Origin Classification:HA is isolated from bacterial or yeast cultures, so it is considered natural but laboratory made. It is not considered organic.Personal Care Category:Humectant, moisturizerRecommended for the following Baumann Skin Types:DRNT, DRNW, DRPT, DRPW, DSNT, DSNW, DSPT, and DSPW, but only if used in a humid environment or with an occlusive ingredient. ORNW, ORPW, OSNW, and OSPW in any environment. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/20 UR - dermatology.mhmedical.com/content.aspx?aid=1174541861 ER -