And if so, also when it's used by non-blondes like me? I have light brown hair, but I hate the blue stains that regular Folligen leaves. After approx. a month of usage though, I think it's safe to say that this product is helping quite a lot with decreasing my shedding. I got a free sample of Folligen for Blondes with my order and actually prefer that one. Is it okay to switch, or to use them interchangeably, just to be safe?
