Youtheory Collagen Advanced Formula Types 1 2 and 3 160 Tablets It gives stronger hair and nails. This is an added joint formula. This formula is great for ligaments and tendons. Collagen advanced formula and 3 contains 18 amino acids.
21st century healthy renewal formula extra strength hair, skin and nails works to help support your natural beauty from within. Biotin and vitamins a, c, e are the nutrients needed to promote lustrous hair, strong nails and vibrant skin. Biotin is important for the maintenance of healthy skin... more details at http://supplements.occupationalhealthandsafetyprofessionals.com/vitamins/hair-skin-nails-complex/product-review-for-21st-century-hair-skin-and-nails-extra-strength-tab