The day and night routine for soft and damaged nails, an express care that strengthens and regenerates. Includes: Keratin Booster: 10% concentrated care that instantly repairs brittle nails. SOS Mask: a nighttime treatment that intensely moisturizes the nails. Day & night routine: In just 7 days, it visibly repairs soft and damaged nails thanks to the combined action of two expert treatments. Day Care – Keratin Booster: Miracle hardener that instantly strengthens and regenerates. Formula with plant-based keratin, AHAs, gluconolactone, silicon, biotin, and vitamin C. Proven results: harder, stronger, and more resilient nails. Fluid texture, fast absorption, non-greasy finish. Nighttime Care – SOS Mask: A nighttime mask that deeply hydrates severely damaged nails. Its emollient and fortifying formula creates a protective film that promotes cell repair. Visible results: more hydrated, harder, and stronger nails. Instructions for use (7 days): Day: Apply Keratin Booster 1 to 3 times on clean nails and allow to absorb. Night: Apply SOS Mask 2 to 3 times a week in a thick layer, let it dry and remove it in the morning.