Athiya Shetty Shares Onion Oil Haircare Secret

Athiya Shetty shared her hair care tip: onion oil.

Dermatologists say it may help hair growth and prevent hair loss because it is rich in sulfur.

It might also boost circulation and fight scalp infections.

However, it can cause irritation, like itchy scalp and hair fall.

Experts advise consulting a professional and rinsing thoroughly to avoid issues.

A small study showed some hair regrowth with onion juice use.