Health effect
Hair Growth
More hair in the brush can mean temporary shedding or an ongoing hair-loss condition. Finding the cause is more useful than choosing a supplement by its “growth” claim.
Linked studies
4 publications behind the ratings for hair growth, newest first.
A Review of the Use of Biotin for Hair Loss2017 · BiotinThe Infatuation With Biotin Supplementation: Is There Truth Behind Its Rising Popularity? A Comparative Analysis of Clinical Efficacy versus Social Popularity.2017 · BiotinHair Loss, AlopeciaLycopeneEffects of Lycopersicon esculentum extract on hair growth and alopecia preventionLycopene