The Duo Day & Night is a targeted nail care routine designed to strengthen and regenerate soft, damaged nails in just seven days. Built around the complementary action of a daytime booster and an intensive night treatment, it supports visible repair through a simple, structured approach.
The routine combines the Keratin Booster, a highly concentrated day treatment, with the S.O.S Mask, an overnight care product that deeply hydrates and protects the nail surface. Together, they form an express cure that helps restore strength, resistance, and comfort to weakened nails.
We appreciate its clear, results-focused structure. The day-and-night approach feels intuitive and effective, offering a disciplined routine that delivers visible improvement without unnecessary steps.
This routine brings together formulas with a high proportion of ingredients of natural origin, developed according to ISO 16128 standards. Each treatment is designed with a focused composition to support nail health and regeneration.
We follow the routine over seven days, applying the Keratin Booster during the day and the S.O.S Mask at night, according to the recommended frequency.
