Quick view Doctors Best Biotin 5000mcg - 120 Vege Capsules MSRP: $33.36 Now: $24.78 Was: Doctor's Best Biotin is a highly potent source of biotin, a water-soluble B-Vitamin that promotes healthy hair, skin and nails. Clinical observations of biotin deficiency show its importance for... MSRP: $33.36 Now: $24.78 Was: Add to Cart Quick view Add to Cart