Leave your hair visibly nourished and revitalized with Dr. Berg Biotin Shampoo. Our new and improved formula is certified safe for sensitive skin and is paraben-, sulfate-, silicone-, and cruelty-free. Infused with argan oil, biotin, keratin, and revitalizing botanicals, this deep-cleansing shampoo effortlessly cleanses your hair and supports fullness and shine with each use. Dr. Berg Biotin Shampoo is backed by our 30-day money-back guarantee!