At Viviscal, we understand hair. The Viviscal Hair Growth* and Hair Care Programs provide a variety of ways to nourish your hair from the inside out, and the outside in. Viviscal Extra Strength dietary 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. Healthy hair starts from within. If your diet lacks specific nutrients, including vitamins, minerals or protein, it can affect the condition and strength of your hair. Viviscal Extra Strength dietary supplements contain the exclusive marine complex AminoMar®, as well as Biotin, Zinc, Vitamin C, Horsetail Extract and Iron, to nourish hair from within. Viviscal Extra Strength has been scientifically proven to nourish thinning hair and promote existing hair growth.