Swanson Premium Biotin Conditioner with Silica is the perfect complement to our biotin shampoo. This formulation is paraben free and SLS free! Biotin is one of the best substances for supporting healthy, beautiful skin and hair, so it makes sense that it has become one of the most popular ingredients in shampoos and conditioners. Treat your hair to the best with our Biotin Conditioner. Use with Biotin Shampoo for best results.