Soy Isoflavone Supplements Benefit Skin

NODA, Japan—Consumption of soy isoflavones may improve the skin tone of middle-aged women (J Nutr Sci Vitaminol (Tokyo). 2007 Feb;53(1):57-62). Twenty-six women in their late 30s and 40s received a test food with 40 mg/d of soy isoflavone aglycones or a placebo food for 12 weeks. At four, eight and 12 weeks, researchers evaluated the extent of linear and fine wrinkles at the lateral angle of the eyes and the wrinkles’ area ratio. The group consuming the soy isoflavones showed a statistically significant improvement in fine wrinkles at week 12 and malar skin elasticity at week eight. No adverse symptoms from soy intake were recorded.