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Read more about how biotin shampoo could help with the fullness of hair at Cleveland Clinic.

Maple Holistics is a small business that specializes in beauty products with all-natural ingredients. Check out a TikTok of the biotin shampoo in action. 

Promising review: “I love this shampoo! I had gastric sleeve surgery, and my hair was very, very thin. I started taking biotin and switched to biotin shampoo, as recommended by my doctor. It doesn’t make your hair grow by washing it, but it makes your hair and roots stronger. And it worked. After using the whole bottle, my hair was stronger. I had a lot of new growth that was sticking around (the previous new growth fell out early on), and my hair was getting thicker. Eight months later, my hair is back to normal. It’s longer and thicker than ever.” —Diane J. Huff

Get it from Amazon for $12.95.

Psst — reviewers mention this is most effective when paired with a scalp massager to work it into their roots!