After three months of use, there were no side effects of any kind. On the other hand, I'm finding no improvements to hair texture or density outside more rapid growth of facial hair. The travel size shampoo/conditioner included with the initial shipment are largely unused. The shampoo imparts a strange squeaky feel to my long hair that can't be good for it. Plus, I already use high quality salon and dermatological brands that work well for volume and condition.
Bottom Line: No, I would not recommend this to a friend
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