Rejuvenate thin and weak hair! Part of our 5-in-1 multi-benefit rejuvenating system, this sulfate free biotin shampoo, infused with ethically-sourced mandarin, works to cleanse, hydrate, strengthen and add shine to your hair. This biotin hair shampoo is also 93% Naturally Derived and and cruelty-free, sulfate free, paraben-free, silicone-free, dye-free, & formulated without phthalates.