How to hair grow using onion

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Answer

While some people believe that applying onion juice to the scalp can promote hair growth, there is no scientific evidence to support this claim.

Onions contain sulfur, which is a component of keratin (the protein that makes up hair), and some proponents suggest that this sulfur content can nourish hair follicles. However, the effectiveness of topical onion application for hair growth has not been proven in clinical studies.

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