Synopsis

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

Silicate, often referenced in the context of dietary silicon (commonly as orthosilicic acid or silicon dioxide), is used to support nail health based on both emerging scientific evidence and some traditional beliefs. Silicon is an essential trace element that plays a role in the synthesis of collagen, which is a major structural protein in nails, skin, and hair. Several studies have examined the effects of silicon supplementation on nail strength and quality. For example, a 2005 randomized study published in the "Archives of Dermatological Research" found that oral supplementation with choline-stabilized orthosilicic acid improved the brittleness of nails in women with fragile nails. The likely mechanism is that silicon enhances the formation of glycosaminoglycans and collagen, contributing to the integrity and resilience of the nail matrix. However, while there is evidence of benefit, the number of robust clinical trials is limited, and the effects tend to be modest. Most studies focus on overall connective tissue health rather than nails specifically. Therefore, while the use of silicate for nail health has a scientific basis, the strength of the evidence is moderate (rating of 3/5) and more large-scale, specific studies are warranted to firmly establish its efficacy.

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