The Root Cause
Everything You've Ever Wanted to Know About Hair Loss (and the Top Strategies for Regaining and Maintaining Lush Locks)
According to the American Hair Loss Association, in clinical trials 19 percent of (mainly Caucasian) women reported that after eight months of use they had moderate hair growth and 40 percent had minimal regrowth. (It generally takes at least four months of daily use to see results.) Minoxidil is available in a range of concentrations; the 2 percent formula is recommended for women.
The newly expanded "age-fighting" product category includes many leave-in treatments, shampoos and conditioners that have caffeine and vitamin B3, ingredients that have been linked to hair growth in lab studies, but the jury is still out on whether they are highly effective. While the products may not increase growth, they can improve the appearance of your hair. One established product, the leave-in treatment Nioxin DiaMax "works from the very first use by puffing the hair strand from the inside and then adds a lightweight, thickening layer to the outside of the hair strand," says NYC-based hairstylist Danielle Caputo, who consults for the Nioxin brand.
Many experts also recommend taking biotin (aka B7) to improve hair health. "Biotin is a very effective tool for treating hair loss, especially in women," says Dr. Welter. "I nearly universally recommend it, typically about 5,000 micrograms daily." (Talk to your doctor first just to be safe, especially if you are taking any other medication.)
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