Synopsis

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

Silicon is a trace element that has received some scientific attention for its potential role in skin health, especially in the context of dryness and supporting structural integrity. It is commonly found in the form of orthosilicic acid in supplements. Some studies suggest that silicon contributes to the synthesis of collagen and may help improve skin elasticity and hydration. For instance, a double-blind, placebo-controlled study published in 2005 found that women taking oral silicon supplements (as choline-stabilized orthosilicic acid) for 20 weeks showed improvements in skin surface characteristics, including roughness and hydration. However, the number of robust clinical trials remains limited, and the existing studies often involve small sample sizes and short durations.

Traditionally, silicon-rich plant extracts such as horsetail (Equisetum arvense) have been used in folk remedies for skin and connective tissue health, but this traditional use is less prominent compared to scientific interest. The mechanistic rationale behind silicon supplementation is based on its role as a structural component of glycosaminoglycans and collagen, both of which are essential for skin moisture and resilience.

Despite some promising findings, the strength of scientific evidence is moderate at best, with a need for larger, well-controlled studies to confirm efficacy and optimal dosing. Therefore, silicon’s use for dry or flaky skin is supported by preliminary scientific evidence, but it is not yet considered a mainstream dermatological intervention.

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