21st Century Hair, Skin & Nails is an advanced formula dietary supplement containing natural herbs, vitamins, and minerals specifically designed to nourish and support healthy hair, skin, and nail growth. Each bottle contains 30 caplets for a month's supply. This supplement is formulated as a comprehensive blend of nutrients to support beauty from within. As a dietary supplement containing herbs, vitamins and minerals, it should be taken as directed on the label. Being a personal care/supplement product, detailed key features are not listed per the schema requirements.