Mavala Scientifique Nail Hardener is a specialized nail treatment solution that strengthens and hardens weak, soft, or splitting nails. This scientifically formulated product helps improve nail durability by reinforcing the nail plate and preventing breakage. The product comes in a 5ml/.16 fl. oz bottle with a red cap and applicator. As a nail care treatment, it should be applied directly to clean, bare nails. For best results, the product should be used regularly as part of a nail care routine. This is a cosmetic product intended for external use only.