Like any dietary supplement, the results you see from taking Folexin to encourage hair growth are subject to a number of variables, including your own lifestyle and diet. Consider that hair grows at a rate of only 6 to 12 millimetres per month (about a quarter of an inch to a half of an inch), making it tricky to determine whether or not a product actually helps hair grow by looking at its length alone. Nonetheless, there are many other outward indications of healthy hair growth. The effectiveness of nutritional supplements is typically gradual, but each person is different. Depending on the individual, customers can expect to see results anywhere from a few weeks to a few months.