Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Silica, in the form of silicon or silicon dioxide, is a trace mineral that plays a structural role in connective tissues, including skin. Its use for wrinkles is primarily supported by scientific, rather than traditional, evidence, though the strength of the evidence is limited. Some studies suggest that dietary silicon can improve skin strength and elasticity by promoting collagen synthesis, which is crucial for maintaining youthful skin and reducing the appearance of wrinkles. For example, a randomized, double-blind, placebo-controlled trial published in Archives of Dermatological Research (2005) found that women who took orthosilicic acid supplements for 20 weeks showed significantly improved skin roughness and elasticity compared to placebo. Another study in European Review for Medical and Pharmacological Sciences (2016) also reported positive effects of silicon supplementation on skin quality. However, the number of clinical trials is small, and many studies have methodological limitations (such as small sample sizes or short duration).

There is little evidence supporting the effectiveness of topical silica for wrinkles; most benefits are observed with oral supplementation. The mechanism is thought to involve the stimulation of collagen production and improved skin hydration. Overall, while there is some scientific basis for using silica to support skin health and potentially reduce wrinkles, the evidence is still emerging and not robust. Therefore, silica's use for wrinkles receives a moderate-low rating based on current scientific data.

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