Discover the SOS masque, enriched with Panthenol, forming a super-moisturising film for deep nail regeneration thanks to a short but ultra-effective list of ingredients! For very damaged nails. Washes off with soapy water the next morning. SOS Masque: An intensive nail treatment enriched with Panthenol, forming a super-moisturizing film for deep regeneration. Its concentrated hydrating and fortifying agents enhance nail strength, resistance, and appearance. Intensive nail strengthener: Hydrates and fortifies weak nails in just 2 weeks. Nails become harder, fully moisturized, and stronger. Apply nightly and leave on overnight for deep repair. How to Use S.O.S Nail Mask: Apply a thick layer to clean nails after your nighttime routine. Let it dry naturally and leave it on overnight. In the morning, peel off or rinse with warm soapy water. Use three times a week for best results. Made in France: Manucurist offers quick-dry nail polishes, gels, and care products for a perfect, health-conscious manicure. Our plant-based, vegan formulas are free from toxic ingredients and come in sustainable packaging.