Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Silicon, particularly in the form of orthosilicic acid and silicon-containing supplements, has a modest but growing body of scientific evidence supporting its role in skin health. Silicon is an essential trace element involved in the synthesis of collagen, a crucial structural protein in the skin. Several studies have indicated that silicon supplementation can improve skin elasticity and hydration, primarily by stimulating collagen production and enhancing the structure of the extracellular matrix.

For example, a randomized, double-blind study published in 2005 in the journal Archives of Dermatological Research found that women who took oral silicon supplements for 20 weeks experienced significant improvements in skin roughness and fragility, as well as increased hair and nail strength. Other research, though limited in scale and duration, has similarly shown that silicon may help reduce signs of aging, such as fine lines and wrinkles, by supporting the skin’s structural integrity.

Despite these promising findings, the overall body of evidence is still moderate, with relatively few large, high-quality trials. Silicon is not as widely studied as ingredients like vitamin C or retinoids in dermatology, but its role in connective tissue health is well-established. Therefore, while more research is needed for definitive recommendations, current evidence moderately supports silicon’s use in general skin care, primarily as a supplement to support connective tissue health and skin appearance.

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