Killys strengthening nail polish 3 In 1 Hardener Hypoallergic 10 ml

A transparent nail hardening polish that supports weak, splitting nails through a clear, strengthening coat. The formula includes a methionine derivative that supports production of keratin — the structural protein essential for nail strength — which helps reduce brittleness and decreases the chance of splitting or breaking. It can function as a base coat, a clear polish, or a top coat for regular nail polish, and the finish delivers a smooth, glossy shine that keeps nails looking well-groomed without added colour.

As nails dry under the polish, they become firmer and better protected from everyday wear such as water exposure or mechanical stress. This makes the product well suited for those with naturally soft nails or nails weakened by frequent polishing or external factors.