Biotin cures brittle nails
6.0Moderate
evidence
evidence
The Claim
Some believe that taking biotin supplements can completely cure brittle nails, making them stronger and less prone to breaking.
Origin
This belief stems from early studies and anecdotal reports that suggested a link between biotin and nail health.
What Science Says
There is some evidence from small-scale studies that biotin supplementation can improve nail thickness and reduce splitting in individuals with brittle nails. However, these studies are few, and while results are promising, they are not conclusive. The effect is modest and may not apply to everyone.
Verdict
Mostly True