What I think we need to keep in mind that everyone is different. Everyone's body reacts differently to the same things. Some peoples hair just gets thicker from supplements. All my life I have never been able to slick my hair back with gel, until I took my first hair supplements(Gueye's Hair Vitamins). I could wet my hair and get curls( I remember when I was little and I would get in the water and come out with a big matted afro). When I would stop taking them my hair would revert back to its initial texture. My sister's noticed the difference. My mom noticed,hell even my hair dresser noticed the difference in my texture. I never expected it but my hair is different until this day. Don't get me wrong, I was never ashamed of my coarser hair but my I can say that hair supplements have changed my hair texture. I agree with Jadetyger that you should take them and expect a different texture, because I don't think it happens to everyone. Just one of those freaky things.