Healthy Skin Aging
Recent evidence also points to benefits with oral aloe supplementation on skin conditions. Aloe gel is a source of compounds known as sterols that, according to preliminary research, have been found to stimulate collagen and hyaluronic acid production in human skin cells.
Researchers from Japan led by Miyuki Tanaka of Morinaga Milk Industries Co., Ltd. (Zama City, Japan) recently conducted a study investigating the effects of oral aloe sterol supplementation on skin elasticity, hydration, and the collagen score in 64 healthy women (average age 44.3 years).4 In the 12-week, double-blind placebo–controlled study, women received either yogurt supplemented with aloe gel powder (40 mcg of sterols per 100 g) or a placebo yogurt.
Measures of skin hydration were significantly greater at four, eight, and 12 weeks in the aloe group compared to baseline; by contrast, skin hydration decreased over the 12-week period in the placebo group. Transepidermal water loss decreased in the aloe group while it increased in the placebo group over the study period, indicating a hydration-preserving effect with aloe supplementation. Skin elasticity was also superior in the aloe group; likewise, skin collagen content was greater in the aloe group compared with the placebo. Thus, supplementation with aloe gel containing sterols supports several parameters of healthy skin and may be useful for combating skin aging.
4. Tanaka M et al., “Effects of Aloe sterol supplementation on skin elasticity, hydration, and collagen score: a 12-week double-blind, randomized, controlled trial,” Skin Pharmacology Physiology, vol. 29, no. 6, (2016): 309-317
Photo © Shutterstock.com/goodluz