Just for Toenails (JFT) is an advanced nail polish formulation that has O2 permeability  which was developed and endorsed by podiatrists to be used to improve the appearance of toenails and fingernails. The formula is now "9-free", made without: Formaldehyde, toluene, DBP, formaldehyde resin, camphor, xylene, ethyl tosylamide, parabens, and acetone. JFT was the first marketed, enhanced nail polish with tea tree oil in 1998 and remains the most reasonably priced podiatry driven product on the market today.