I an a 61 year old woman, and I've been on minoxidil for years. A dermatologist I saw about 4 years ago recommended I switch to the stonger formula made for men. I've noticed my hair texture getting extremely frizzy, and my curl pattern has disappeared. The twists and turns in the individual hairs have become haphazard. Is this minaturization, or is it due to the monoxidil?