Strengthen your nails with the Sally Hansen Hard as Nails Treatment, an advanced nail strengthener formulated with Nylon to fortify fragile nails & help prevent peeling. Promoting stronger, smoother-looking nails, the tinted nail hardener works to protect & harden the nails while smoothing the look of ridges. Natural Omega 3 & Soy help diminish the appearance of ridges for smoother, shinier & healthier-looking nails. Extra strength formula.