I bought this product to try and regrow my thinning hair and lost hair and was very excited about it based on the advertisement video that looked so promising. I started using this product on my scalp as recommended. Within a couple of days I started getting these whole scalp headaches that was so strong it felt like my whole head was going to explode. I soldiered through it for 2 weeks and could no longer take it. I never even saw anything change. User's recommendation: Do not buy this product I ended up getting really sick from it.