does not work at all [SEP] this shampoo is pretty much a dud i felt like i needed to give it a fair shake and used it as directed for days and there was no difference in my hair as far as thickness it did nothing for the thinness of my hair and the smell was reminiscent of my grandmother i am very disappointed with this product and after reading the reviews i was very hopeful that i would at least notice some difference but there was no difference at all in my hair from when i started using it until i finished absolutely no difference do not waste your money save yourself the and buy the honeydew deals biotin shampoo for i have noticed a huge difference after the first use of the biotin shampoo