This what I used...I believe there was a gel applicator as well but I opted for the liquid version the second time around and found that it worked better for me. As visor mentioned, make sure you get rid of the dead skin, otherwise it's useless. I used a nail clipper (plier style) and removed the skin so that there was sort of a hole where I can drip the liquid in. I put it on every morning and before I go to bed. Also, use duct tape to cover it up.