{"product_id":"nioxin-system-4-scalp-hair-thickening-treatment-6-8-fl-oz-leave-in-serum-for-color-treated-damaged-hair-strengthens-increa","title":"NIOXIN System 4 Scalp + Hair Thickening Treatment — 6.8 fl oz leave-in serum for color-treated, damaged hair | strengthens, increa","description":"\u003cstrong\u003eNIOXIN System 4 Scalp + Hair Thickening Treatment is a leave-in serum that nourishes the scalp, increases individual hair diameter, and helps protect colored, damaged hair with progressed thinning.\u003c\/strong\u003e\n\n\u003cp\u003eThis professional-grade leave-in treatment finishes NIOXIN’s three-step System 4 regimen and is formulated specifically for color-treated or chemically damaged hair showing progressed thinning. It delivers antioxidants, botanicals, and UV-protecting ingredients via NIOXIN’s Scalp Access Delivery System 2.0 to create a refreshed scalp environment and visibly amplify hair structure without weighing strands down.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this treatment strengthen and thicken hair?\u003c\/h3\u003e\n\u003cp\u003eThe formula targets weakened hair fibers and the scalp to reduce breakage and to increase the visible diameter of each strand. Applied after cleansing and conditioning within the System 4 kit, the leave-in serum works to fortify hair resilience and support fuller-looking hair in weeks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContains strengthening agents that reinforce hair shaft integrity.\u003c\/li\u003e\n  \u003cli\u003eDelivers scalp-nourishing antioxidants and botanicals to the root environment.\u003c\/li\u003e\n  \u003cli\u003eLeaves hair feeling thicker without heavy residue.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes this suitable for colored or damaged hair?\u003c\/h3\u003e\n\u003cp\u003eSystem 4 is formulated to protect color-treated hair while addressing progressed thinning—balancing scalp health and protecting strand structure. UV-protection and gentle conditioning ingredients help preserve color vibrancy while the treatment reduces hair loss due to breakage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUV-protection ingredients shield color from fading.\u003c\/li\u003e\n  \u003cli\u003eGentle, non-stripping delivery to avoid adding stress to treated hair.\u003c\/li\u003e\n  \u003cli\u003eDesigned to work with the System 4 cleanser and conditioner for best results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I use it within the three-part NIOXIN regimen?\u003c\/h3\u003e\n\u003cp\u003eUse this leave-in serum as the final step after the System 4 Cleanser Shampoo and Scalp Therapy Conditioner. Apply to a towel-dried scalp and hair, comb through, and style as usual; no rinse needed so active ingredients remain at the scalp and along the strand.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApply a few pumps directly to the scalp and roots on damp hair.\u003c\/li\u003e\n  \u003cli\u003eDistribute evenly with fingertips or a comb to target thinning areas.\u003c\/li\u003e\n  \u003cli\u003eUse consistently with System 4 for visible improvements in structure and fullness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat practical results can I expect and when?\u003c\/h3\u003e\n\u003cp\u003eUsers report noticeable changes in hair thickness and density with regular use; many see visible improvements within about 30 days when used as directed. The treatment focuses on reducing breakage, refreshing the scalp, and enhancing fullness, rather than making clinical growth promises.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReported increase in perceived hair fullness and density.\u003c\/li\u003e\n  \u003cli\u003eHelps minimize breakage that contributes to thinning appearance.\u003c\/li\u003e\n  \u003cli\u003eMaintains scalp balance and reduces buildup that can hinder healthy hair appearance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: NIOXIN System 4 Scalp + Hair Thickening Treatment is intended for people with color-treated, chemically processed, or damaged hair experiencing progressed thinning who want a salon-strength, leave-in solution. It’s best for those already using or willing to follow the three-step NIOXIN System 4 routine and who seek to strengthen strands, refresh their scalp environment, and enhance hair diameter without compromising color.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003eAqua, Phenylbenzimidazole Sulfonic Acid, Niacinamide, Benzophenone-4, Caffeine, Polysorbate 20, Sodium Hydroxide, Benzyl Alcohol, Sodium Benzoate, Phenoxyethanol, PEG-12 Dimethicone, Citric Acid, Cocamidopropyl Betaine, Acetamide MEA, Isopropyl C12-15-Pareth-9 Carboxylate, Tetrasodium EDTA, Propylene Glycol, Methyl Nicotinate, Sodium Chloride, Parfum, Polysorbate 60, Polysorbate 80, Mentha Piperita Oil, Mentha Arvensis Leaf Oil, Menthol, PEG-23M, Camellia Sinensis Leaf Extract, Limonene, Cystine Bis-PG-Propyl Silanetriol, Biotin, Lecithin, Tocopheryl Acetate, Foeniculum Vulgare Fruit Extract, Silica, Faex Extract, Acer Saccharum Extract, Citrus Limon Peel Extract, Saccharum Officinarum Extract, Vaccinium Myrtillus Leaf Extract, Citrus Aurantium Dulcis Fruit Extract, Potassium Sorbate\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: Can I use this on chemically treated or colored hair?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. System 4 is formulated for colored or chemically treated hair experiencing progressed thinning and includes UV-protection to help preserve color.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I apply the leave-in treatment?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use the leave-in treatment daily after shampooing and conditioning with NIOXIN System 4 for best visible results.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NIOXIN","offers":[{"title":"Default Title","offer_id":53425558847835,"sku":"B0054Y0PMK","price":42.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1017\/9860\/9243\/files\/nioxin-front-packaging.jpg?v=1782207607","url":"https:\/\/remediesbeauty.co.uk\/products\/nioxin-system-4-scalp-hair-thickening-treatment-6-8-fl-oz-leave-in-serum-for-color-treated-damaged-hair-strengthens-increa","provider":"REMEDIESBEAUTY","version":"1.0","type":"link"}