ISDIN Si-Nails is an innovative nail strengthener designed to repair, strengthen, and protect brittle, weak, and damaged nails. Enriched with hyaluronic acid, cationic hyaluronic acid, and silanediol salicylate, it promotes nail growth, enhances keratin production, and improves hydration and flexibility. Its easy-to-use brush applicator delivers precise application, making it a convenient addition to your nail care routine. Key Features: • Strengthens Nails: Reinforces nail structure, reducing brittleness and breakage. • Promotes Growth: Stimulates keratin production to encourage healthy nail growth. • Hydration Boost: Improves nail and cuticle hydration for flexibility and smoothness. • Protective Action: Enhances nail resistance to external aggressors. • Easy Application: Pen-style applicator for mess-free, precise use. • Dermatologically Tested: Suitable for all nail types, including sensitive and damaged nails. How to Use: 1. Apply once daily to clean, dry nails and surrounding cuticles. 2. Spread evenly using the brush applicator. 3. Allow to dry completely. 4. Use consistently for visible results in 14 days.