Viviscal Hair Growth Supplements for women nourish thinning hair and promote existing hair growth from within. Viviscal Hair Growth Supplements supply vital nutrients to the hair follicle to prolong the anagen (growing) phase of the hair growth cycle, nourishing thinning hair and promoting hair growth. Viviscal Hair Growth Supplements contain the exclusive marine complex Amino Mar, as well as Biotin, Zinc, Vitamin C, Horsetail Extract and Iron, to nourish hair from within.