Regaine 2% solution for the scalp 60mlRegaine 2% prevents excessive hair loss and stimulates hair growth. Regaine 2% prevents excessive hair loss and stimulates hair growth. This is how it preserves your current head hair. It also promotes the regrowth of new hair in areas that have already been thinned or bald and strengthens any downy hair that is still present. But it will take at least four months before you can see any success. If hair roots are still present, fine, light downy hairs