Mavala Scientifique K+ Nail Hardener

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Mavala Scientifique K+ Nail Hardener helps soft, flaking or splitting nails to become healthier and stronger by improving the cohesion of keratin fibres, principal element composing the nail, strengthening the bond between the three layers of the nail. It penetrates instantly and dries without leaving any residue on the nail surface.


  • Hardens soft, breaking nails.

  • Makes the nail richer in keratin, therefore more resistant.

  • Can be used with or without nail polish (if using in conjunction with nail polish, Mavala Scientifique K+ must be applied first, on bare nails).

  • Free from formaldehyde, phthalates, paraben and fragrance.


    Remove your nail polish or any oily film and clean nails thoroughly. Brush on Mavala Scientifique K+ from the centre of the nail to the tip only. Avoid touching cuticles and skin around nails, to avoid them getting too hard.

    Leave to penetrate for one minute, by holding hands downwards. Once dry, you can apply your manicure.

    Use two to three times a week until nails have obtained the desired hardness. You may then space out applications.


    • Formulated with 90% of natural origin ingredients.
    • Dimethylurea, a hardener of the nail keratin.

    • Crystal resin tears, from the pistachio mastic tree, native from the island of Chios in Greece. This gum extract supports the natural keratinization process of nails, reinforcing them.