No but let me explain it like this. I was maintaining for almost a decade on Finasteride and 5% minoxidil. I had a 100% head full of hair, all of a sudden I started shedding for a year getting thinner and thinner. I had lets say 75% of my hair left. After I started the 15%, the wedding subsided and I regrew a little of what I had lost, say I was now at 85%. I made the percentages up but its to illustrate the point. I never returned to what I initially had but the good news it I regained a little of what I lost. I should say that, its a very very slow process. I know that many companies and people say to give yourself 2-3-4 months but really you should give yourself 6 months and even up to a year. Just think about it to regrow a "non existent" hair from nothing to something visible will surely take more 2-3 months. The only thing that annoys me is the price difference. It costs me 4X more then Kirkland minoxidil 5% but what I do it apply the 15% in the sensitive areas and still apply the 5% in area where Im not so sensitive to hair loss. Ive always told people that we have excellent tools (big three) to prevent hair loss and maintain hair and very poor tools for regrowth. Hence its always best to tackle hair loss early. That is what I did but gosh when your genes kick in even using the big three won't help much.