Should I Take a Vitamin for Brittle Nails? - The New York Times
The Truth About Biotin For Nails: Does It Work? - Vital Proteins
3 months progress after a lifetime of biting. I never post, but I wanted to give back to this community that's helped me so much! Here's to biotin supplements and shiny nail
Ridges in Fingernails: Causes, Symptoms, Treatment, Prevention
Brittle Nails - Can Vitamin Supplements, Such As Biotin, Help? - ConsumerLab.com