Healthy hair**Biotin & selenium contribute to the maintenance of normal hair.Firmer skin****Vitamin C contributes to normal collagen formation for the normal function of skin.Strong nails^^Selenium contributes to the maintenance of normal nails.Collagen gummies with Marine Collagen, Vitamin C, Biotin, SeleniumBioglan Beauty Collagen gummies help boost your collagen intake, specially formulated with absorbable Marine Collagen Peptides plus carefully selected vitamins and minerals that support the maintenance of healthy hair, skin & nails. Best part is they are so easy to take - no water and no swallowing difficult tablets Plus they have a delicious strawberry flavour which you'll look forward to taking daily!Bioglan uses type i collagen, which is the most abundant form of collagen found in the body and more particularly in the skin. It can also be found in hair follicle and nail bed dermis.