title: Niacinamide: A B vitamin that improves aging facial skin appearance.
abstract: BACKGROUND
  In multiple chronic clinical studies, topical niacinamide (vitamin B3) has been observed to be well tolerated by skin and to provide a broad array of improvements in the appearance of aging facial skin (eg, reduction in the appearance of hyperpigmentated spots and red blotchiness).
  
  
  OBJECTIVE
  To clinically determine the effect of topical niacinamide on additional skin appearance and property end points (wrinkles, yellowing, and elasticity).
  
  
  METHODS
  Female white subjects (N = 50) with clinical signs of facial photoaging (fine lines and wrinkles, poor texture, and hyperpigmented spots) applied 5% niacinamide to half of the face and its vehicle control to the other half twice daily for 12 weeks (double blind, left-right randomized). Facial images and instrumental measures were obtained at baseline and at 4-week intervals.
  
  
  RESULTS
  Analyses of the data revealed a variety of significant skin appearance improvement effects for topical niacinamide: reductions in fine lines and wrinkles, hyperpigmented spots, red blotchiness, and skin sallowness (yellowing). In addition, elasticity (as measured via cutometry) was improved. Corresponding mechanistic information is presented.
  
  
  CONCLUSIONS
  In addition to previously observed benefits for topical niacinamide, additional effects were identified (improved appearance of skin wrinkles and yellowing and improved elasticity).
authors: The Procter & Gamble Company, Miami Valley Laboratories, Cincinnati, Ohio 45252, USA. bissett.dl@pg.com
authors: Donald L
authors: DL
authors: Bissett
authors: John E
authors: JE
authors: Oblong
authors: Cynthia A
authors: CA
authors: Berge
mesh_terms: D000287:Administration, Topical; D000328:Adult; D003879:Dermatologic Agents / Q000008:administration & dosage*; D004311:Double-Blind Method; D005145:Face; D005260:Female; D006801:Humans; D008875:Middle Aged; D009536:Niacinamide / Q000008:administration & dosage*; D015595:Skin Aging / Q000187:drug effects*
chemical_list: D003879:Dermatologic Agents; D009536:Niacinamide