i've been using it for many years now, and it's perfect: my nails are really strengthened and no longer brittle when they grow back. I use it several times a day to start with (1st bottle), then as a maintenance treatment afterwards.
Virginie F.
Mavala Science K+ Nail Hardener 5ml is an aqueous solution that hardens soft nails and prevents them from breaking or separating. This product, useful in case of broken or brittle nails, improves the cohesion of the keratin fibers, allowing the three main layers of the nail to come together.
Not to be confused with a base or enamel.