I am using ru 5% at kb solution 1,5ml on day, I have been using it for 30 days, I noticeable less hair loss, my hair is thicker and probably a few regrowth, It's works for me without doubt, But it have a inconvenient, it creates a film in your head, I use minoxidil, I don´t know it that film could decrease the absortion of minoxidil, Could be?. And after a shower the film don´t disapear, Anybody knows how could be eliminate that film?