Si-Nails Strengthener is a specialized nail treatment product containing cationic hyaluronic acid designed to strengthen and improve the appearance of brittle nails. The 2.5ml pen applicator format allows for precise application and promises visible results in 14 days. Key features: • Contains cationic hyaluronic acid as key ingredient • Pen applicator format for precise application • Strengthens and improves nail appearance • Shows visible results in 14 days • 2.5ml product volume The product should be applied directly to clean, bare nails and not over nail polish or gel. When using for the first time, the pen needs to be activated by clicking approximately 25 times until product flows. For best results, regular application is recommended and improvement will continue with extended use. The formula helps increase nail thickness, density and overall durability while also moisturizing the cuticles.