Mavala Scientifique Nail Hardener K+ 5ml.MAVALA SCIENTIFIQUE K+ hardens the nail plate thanks to a scientific active ingredient that improves the cohesion of keratin fibres thus allowing the three principal nail layers to bond together. It also contains crystal resin tears, a gum extracted from the pistachio mastic tree that helps the natural keratinization process of nails, reinforcing them.
