{"product_id":"nioxin-system-4-scalp-hair-thickening-treatment-serum-3-4-fl-oz-for-color-treated-thinning-hair-strengthens-adds-diameter","title":"NIOXIN System 4 Scalp + Hair Thickening Treatment Serum 3.4 fl oz — for Color-Treated, Thinning Hair, Strengthens \u0026 Adds Diameter","description":"\u003cp\u003e\u003cstrong\u003eNioxin System 4 Scalp + Hair Thickening Treatment is a leave-in serum that refreshes the scalp and visibly increases hair diameter for color-treated, damaged hair experiencing progressed thinning.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis targeted finishing step is part of Nioxin's three-part System 4 and is formulated to fortify weakened strands while improving the scalp environment. The lightweight serum delivers a blend of nutrients, botanicals and antioxidants to help protect hair from breakage, support natural-looking fullness, and maintain color vibrancy without weighing hair down.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this treatment make hair look thicker?\u003c\/h3\u003e\n\u003cp\u003eThe formula coats hair fibers to increase perceived diameter and lends a fuller appearance across the hair shaft. Over repeated use, it helps strengthen fragile strands so they resist breakage and appear more substantial.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLeaves-in a diameter-increasing complex that amplifies strand thickness\u003c\/li\u003e\n  \u003cli\u003eStrengthening ingredients reduce breakage that thins visible volume\u003c\/li\u003e\n  \u003cli\u003eDesigned to work with the System 4 regimen for cumulative results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it work on color-treated or chemically damaged hair?\u003c\/h3\u003e\n\u003cp\u003eYes — this edition of System 4 is specifically tailored for color-treated and damaged hair with progressed thinning. The lightweight serum helps preserve color integrity while addressing the weakened structure that follows chemical services.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFormulated to be safe for color-treated hair\u003c\/li\u003e\n  \u003cli\u003eContains antioxidants and UV-protecting elements to defend against environmental stressors\u003c\/li\u003e\n  \u003cli\u003eHelps restore a healthier scalp base to support resilient colored strands\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I use the Scalp + Hair Thickening Treatment?\u003c\/h3\u003e\n\u003cp\u003eUse as the finishing step in the three-part Nioxin System 4 routine: apply to a towel-dried scalp and hair, then style as usual. The leave-in serum is designed for daily or regular use and absorbs without leaving heavy residue.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApply directly to the scalp and throughout lengths after cleansing and conditioner steps\u003c\/li\u003e\n  \u003cli\u003eMassage gently to ensure even distribution and scalp access\u003c\/li\u003e\n  \u003cli\u003eDo not rinse out; style normally to maintain added body and manageability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat scalp benefits does this treatment provide?\u003c\/h3\u003e\n\u003cp\u003eThe product cleanses and refreshes the scalp environment to reduce buildup that can stress follicles. By delivering botanicals and nutrients to the scalp, it supports conditions that are more favorable for stronger-looking hair.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHelps remove excess sebum and impurities that can block follicle access\u003c\/li\u003e\n  \u003cli\u003eDelivers antioxidants and botanical extracts to nurture the scalp surface\u003c\/li\u003e\n  \u003cli\u003eCreates a refreshed base that complements the System 4 strengthening protocol\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Nioxin System 4 Scalp + Hair Thickening Treatment is best suited for people with color-treated or chemically processed hair that shows progressed thinning and visible breakage. It’s intended for users who want a lightweight, leave-in booster that supports fuller-looking hair while protecting color and improving the scalp environment. Ideal when used consistently as the finishing step in the full System 4 regimen, especially for those seeking a salon-grade approach to strengthening fragile, treated hair.\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: Is Nioxin System 4 safe on colored hair?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This System 4 formulation is made for color-treated hair and aims to protect color while addressing thinning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How soon will I see results?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Many users notice improved fullness within about 30 days with consistent use as directed in the three-step System 4 routine.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NIOXIN","offers":[{"title":"Default Title","offer_id":53438041751899,"sku":"B005F1IMFO","price":30.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1017\/9860\/9243\/files\/nioxin-system4-front-packaging_76b775d9-4196-4b22-a234-d8304cbef914.jpg?v=1782350511","url":"https:\/\/remediesbeauty.co.uk\/products\/nioxin-system-4-scalp-hair-thickening-treatment-serum-3-4-fl-oz-for-color-treated-thinning-hair-strengthens-adds-diameter","provider":"REMEDIESBEAUTY","version":"1.0","type":"link"}