I use Biostimul for practically all problems, whether surface or internal. I also use it to strengthen the body - by shining it on the recommended points. It has helped me and continues to help me from minor scratches and scar healing to problems related to my profession, i.e. minor tendon pains, inflammation and muscular problems. But the coolest part is that it doesn't just help me, it helps my whole family, which is why we have several of them already!
