Tuff Stuff hoof Conditioner and toughener that offers a show quality shine. Tuff Stuff is so effective, that after treating an egg with it, you can drive a nail into it without cracking the shell. Working from the inside, Tuff Stuff is an acetone-based formula that moisturizes the hoof. It contains a cellulose bonding agent that retains moisture in the hoof wall, the hoof gets tougher after every application. This product helps maintain a healthy hoof balance, strengthens soft, mushy or cracked hoof walls. Tuff Stuff helps tighten shoes by sealing the nail track.