Strengthen soft or splitting nails with Mavala Scientifique K+ Nail Hardener 5ml. Benefits: Mavala Scientifique K+ Nail Hardener 5ml is formulated to help soft, flaking or splitting nails Helps nails to become healthy and strong Unique formula hardens nails to restore normal growth Infused with PRO Keratin Formulated without formaldehyde From the world leader in nail care, Mavala