Chronic exposure of the skin to sunlight causes damage to the underlying connective tissue with a loss of elasticity and firmness. Silicon was suggested to have an important function in the formation and maintenance of connective tissue. Biosil is a bioavailable form of silicon which was found to increase the hydroxyproline concentration in the skin of animals. The effect of Biosil on skin, nails, and hair was investigated in a randomized, double-blind, placebo-controlled study.
Fifty women with photodamaged facial skin were administered Biosil for 20 weeks, the equivalent of 2 capsules a day. The women were evaluated for wrinkle depth, skin elasticity, and brittleness of hair and nails. The blood silicon concentration was significantly higher after a 20-week supplementation in subjects with Biosil compared to the placebo group. Wrinkle depth increased in the placebo group, but decreased significantly in the Biosil group. Scores for nail and hair brittleness were significantly improved after 20 weeks in the Biosil group.
The researchers concluded:
“Oral intake of Biosil during the 20 weeks results in a significant positive effect on skin surface and skin mechanical properties, and on brittleness of hair and nails.”