Viviscal Extra Strength hair vitamin supplements for women nourish thinning hair and promote existing hair growth from within. Everyday stress, hormonal changes, poor nutrition, age, menopause, post-pregnancy, heredity, medication and damage caused by the environment and overstyling can impact the health of your hair and lead to breakage and excess shedding. Therefore, it's important to ensure that the hair and scalp are healthy, conditioned and nourished to maintain the ideal environment for healthy hair growth.For the optimum experience, it is recommended to take two supplements daily for a minimum of three to six months in line with the natural hair growth cycle. Take one supplement in the morning and the other in the evening. Take with water after food.