{"product_id":"isdin-si-nails-nail-strengthening-hardening-serum-0-08-fl-oz-fast-absorbing-hydrating","title":"ISDIN Si-Nails Nail Strengthening \u0026 Hardening Serum 0.08 fl oz — Fast-Absorbing, Hydrating","description":"\u003cstrong\u003eISDIN Si-Nails is a fast-absorbing nail strengthening and hardening serum formulated to improve nail durability, hydration, and appearance.\u003c\/strong\u003e\n\n\u003cp\u003eIf your nails are thin, brittle, or prone to breaking, Si-Nails delivers a targeted formula developed in Spain to reinforce the nail plate and hydrate cuticles. The lightweight 0.08 fl oz serum combines silanediol salicylate to support silicon levels in nails, pistacia lentiscus gum to encourage keratin-related structure, and cationic hyaluronic acid to boost cuticle moisture—all in a fast-absorbing vehicle that won’t leave residue.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will I notice stronger nails?\u003c\/h3\u003e\n\u003cp\u003eVisible improvements are typically reported after consistent daily use; many users notice changes in texture and durability within weeks. Results depend on nail growth rate and how often the product is applied.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApply once daily to clean, dry nails and cuticles for best results.\u003c\/li\u003e\n  \u003cli\u003eFull effect aligns with your natural nail growth cycle—continue use consistently.\u003c\/li\u003e\n  \u003cli\u003eFast-absorbing texture minimizes waiting time between applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat active ingredients support nail health in this serum?\u003c\/h3\u003e\n\u003cp\u003eSi-Nails uses a combination of targeted actives rather than a single approach: silanediol salicylate contributes silicon support, pistacia lentiscus gum helps maintain keratin structure, and cationic hyaluronic acid improves cuticle hydration. Together they work on structural and moisture aspects of fragile nails.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSilanediol salicylate: supports silicon-related nail components.\u003c\/li\u003e\n  \u003cli\u003ePistacia lentiscus gum: promotes keratin-associated resilience.\u003c\/li\u003e\n  \u003cli\u003eCationic hyaluronic acid: enhances cuticle and surface hydration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I apply Si-Nails for best results?\u003c\/h3\u003e\n\u003cp\u003eUse the built-in applicator to paint a thin, even layer over the nail surface and surrounding cuticle once daily. No rinsing is required—allow the serum to absorb before using hand products or nail polish.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStart with clean, dry nails free of polish or oils.\u003c\/li\u003e\n  \u003cli\u003eApply a thin coat to each nail and adjacent cuticle; massage gently if desired.\u003c\/li\u003e\n  \u003cli\u003eReapply daily and continue through nail regeneration for sustained benefits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this serum suitable for sensitive or damaged nails?\u003c\/h3\u003e\n\u003cp\u003eThe lightweight formula is designed for delicate, weakened nails and focuses on hydration and structural support rather than aggressive chemical abrasion. If you have known sensitivities, test on one nail first or consult a dermatologist for personalized advice.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for brittle, splitting, or thin nails needing reinforcement.\u003c\/li\u003e\n  \u003cli\u003eDermatologically developed ingredients aim to be gentle and fast-absorbing.\u003c\/li\u003e\n  \u003cli\u003ePatch-test recommended for those with reactive skin or nail conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: ISDIN Si-Nails is targeted at people with naturally thin nails, nails weakened by environmental stressors or routine manicures, or anyone seeking a lightweight daily treatment to improve nail firmness and cuticle hydration. The compact 0.08 fl oz size makes it convenient for trying the product, travel, or keeping in a handbag for easy daily application.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eWater, Alcohol Denat., PEG-40 Hydrogenated Castor Oil, Butylene Glycol, Acrylates Copolymer, Silanediol Salicylate, Tromethamine, Caprylic,Capric Triglyceride, Hydroxypropyltrimonium Hyaluronate, Triethanolamine, Biosaccharide Gum-2, Pistacia Lentiscus (Mastic) Gum, Propylene Glycol, Phenoxyethanol, Benzyl Alcohol, Methylparaben\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I use ISDIN Si-Nails?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Apply once daily to clean, dry nails and cuticles; continue regularly for several weeks to see improvement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use nail polish over this serum?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — allow the serum to fully absorb before applying polish to ensure proper adhesion.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ISDIN","offers":[{"title":"Default Title","offer_id":58344645525891,"sku":"B07T6J98TT","price":55.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/2696\/0515\/files\/isdin-si-nails-front-packaging.jpg?v=1782593814","url":"https:\/\/origin-beauty.com\/products\/isdin-si-nails-nail-strengthening-hardening-serum-0-08-fl-oz-fast-absorbing-hydrating","provider":"Origin Beauty","version":"1.0","type":"link"}