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Topical niacinamide reduces yellowing, wrinkling, red blotchiness, and hyperpigmented spots in aging facial skin.

Int J Cosmet Sci. 2004 Oct;26(5):231-8. doi: 10.1111/j.1467-2494.2004.00228.x.

Bissett DL1, Miyamoto K, Sun P, Li J, Berge CA.

Abstract
Previous clinical testing of topical niacinamide (vitamin B3) has revealed a broad array of improvements in the appearance of aging facial skin. The study reported here was done to confirm some of those previous observations and to evaluate additional end points such as skin anti-yellowing. Caucasian female subjects (n = 50, aged 40-60 years) participated in a 12-week, double-blind, placebo-controlled, split-face, left-right randomized clinical study assessing two topical products: moisturizer control product versus the same moisturizer product containing 5% niacinamide. Niacinamide was well tolerated by the skin and provided significant improvements versus control in end points evaluated previously: fine lines/wrinkles, hyperpigmentation spots, texture, and red blotchiness. In addition, skin yellowing (sallowness) versus control was significantly improved. The mechanism by which this array of benefits is achieved with niacinamide is discussed.
PMID:
18492135
[PubMed]

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