When applied daily will help weak nails grow naturally with Aucoumea Klaineana extract, a natural resin from west African trees. Does not contain formaldehyde, toluene, or dibutyl phthatlate (DBP). Aucoumea also helps to strengthen nails and prevents ridges for smoother, healthier nail growth. Contains Protein-Building Biotin (a cell regenerator) for strengthening and Hydrolyzed Soy Protein for hydration to keep the nails strong yet pliable.

Hard Rock is really great if you've just removed acrylics, or another nail enhancement and want to restore your nails back to health quickly. Your nails will not become brittle they will grow back with strength and flexibility.