I can honestly say this stuff works, BUT what it mainly does is makes your hair thicker. I didn't realize it till after a year of using it I noticed it took a lot longer to do my hair, and realized it mainly stops your hair from falling out. I stopped taking it and my hair still grew, and went back to its normal fullness! This stuff also causes acne, not small pimples all over the face acne, but deep rooted cystic acne. I stopped spending an arm and a leg on this product and started buying Prenatal Vitamins and my hair grew ten times faster. The amount of Biotin and B6 is a lot less, which will in turn take longer for your hair to grow. Prenatal vitamins have selenium, niacin, and ten times more vitamins included that this product doesn't have. I encourage everyone to NOT buy this product, save money, and go buy yourself a 11 dollar bottle of prenatals, you will be much happier!