Rich in biotin, they improve skin, hair, and nail health, supporting cell growth and repair for a healthy appearance ...

"Topical biotin can help with skin hydration of the scalp," she shares ... Houshmand also recommends this serum from Nioxin. She notes that when used in an eight-week clinical study, participants ...

Why we love it: It's great for those with sensitive skin and eyes ... This lash serum uses an exclusive Hexatein 1 Complex as well as a blend of peptides, biotin, panthenol, amino acids, soybean ...