emirates7 - If you've explored various hair loss products in pursuit of longer, fuller hair, you've probably come across biotin. This vitamin is commonly featured in shampoos, serums, supplements, and hair growth gummies, leading many to believe it’s the key to achieving lusher locks.

However, biotin may not be as effective for hair growth as commonly thought. To clarify, we consulted dermatologists about this popular ingredient.

**What is biotin?**
Biotin, a B complex vitamin, is crucial for converting carbohydrates into glucose, which the body uses for energy. It's known for strengthening hair, skin, and nails, making it a common ingredient in hair products. Biotin is available in supplements and topical products like shampoos.

**Do biotin supplements aid hair growth?**
For most healthy individuals, biotin supplements probably won't impact hair growth. According to Dr. Joyce Davis, a New York City dermatologist, excess biotin is excreted through urine if you're already getting sufficient amounts from your diet. Adults typically need 30 micrograms of biotin daily, which can be obtained from a balanced diet that includes meats, eggs, fish, seeds, nuts, and sweet potatoes.

**Does biotin shampoo promote hair growth?**
Similarly, biotin shampoos are unlikely to boost hair growth. Experts suggest that if you notice thicker or fuller hair after using a biotin shampoo, other factors are likely responsible. Topical biotin might not penetrate deeply enough to affect hair follicles directly. However, biotin in shampoos can improve scalp hydration, which could be a beneficial effect.