Sally Hansen triple strong is a breakthrough gel formula that strengthens and protects nails. 3-in-1 protection. Formula with: epoxy polymer reinforces as it adds flexibility; protects against breaking, peeling, and splitting. Calcium complex with pro-vitamin b5 and iron helps strengthen to help natural nails grow longer and stronger. Titanium helps mend and bond weak, fragile nails. Instantly, nails become harder and more durable. Triple strongs quick,-drying, high-shine gel suspension protects nails as they grow longer, stronger and healthy.