Evidence supporting the use of: Vitamin E
For the health condition: Fingernails (weak or brittle)

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Synopsis

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

Vitamin E is occasionally used to support the health of fingernails, particularly for issues like weak or brittle nails. The rationale is based on vitamin E's antioxidant properties, which may help protect cells from oxidative stress, as well as its potential to improve moisture retention in the nail plate and surrounding cuticle. However, the scientific evidence supporting its effectiveness for this use is limited and not robust.

A small number of studies and case reports suggest that topical application of vitamin E oil can improve nail plate smoothness and reduce cracking, likely due to its moisturizing effect. For example, a study published in the journal Cutis (1999) reported improvement in yellow nail syndrome with vitamin E supplementation, but this is a rare condition and not directly representative of common brittle nails. Another study in Mycoses (2012) suggested that vitamin E, when used alongside other topical treatments, could help treat nail changes caused by chronic paronychia, though again, the effect may be related to improved hydration.

Oral supplementation of vitamin E for brittle nails is less well studied, and there is little high-quality clinical evidence to support its routine use for this indication. Most recommendations stem from anecdotal accounts or extrapolation from vitamin E’s general role in skin health. In summary, while there is some scientific basis for using vitamin E topically for brittle nails, the evidence is modest (rated 2/5), and more robust, controlled studies are needed to confirm its efficacy.

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More about Fingernails (weak or brittle)

Other ingredients used for Fingernails (weak or brittle)

Alfalfa
biotin
collagen
gelatin
iron
milk
moringa
silicon
keratin
vitamin E
zinc