Bought this for myself but somehow gave it to my dad who is over 90 and has had a sore right shoulder for yonks. Anyway let's just say that withing 30 mins of putting this on his right arm, the arm/shoulder were like new as if zapped by a magicians magical wand. I am truly witness to an amazing thing! So I will be getting more for me and recommending this to friends and more family. Amazing!