Colour&Double Strong™s revolutionary and unique formula penetrates the structure of the plate, effectively regenerating and rebuilding it. Seals, smooths to the maximum and gives damaged, dull nails a smooth surface and a beautiful shine. It makes it more flexible, increases resistance to mechanical damage. Protects against cracking, breakage and splinters. • Mega durability • Intense regeneration • Long-lasting shine • Maximum protection • Quick drying formula • Professional effect Dermatologically tested product.