S.O.S. Nail Strengthener Treatment Base. Features: Strengthening base coat nail polish that repairs weak, split, and damaged nails. Helps improve nail strength and resilience from the first application. Supports healthier nail growth and overall nail care. Deeply hydrates and restructures the nail surface. Ideal between polish sessions or as a treatment base coat. Visible nail regeneration in 1 week. Vegan formula. Plant-based, bio-sourced ingredients. Cruelty-free. Made in France. Key Ingredients: Vitamin B5: hydrates deeply. Vitamin C: antioxidant properties, nourishment & protection. AHAs: softly exfoliate and improve nail strength. Hexanol: improves overall nail health. Research Results: Proven results*. 100% observed harder nails. 97% observed healthier nails. 93% noticed improved nail quality. Clinical test conducted on 21 women after 3 weeks of use*.