{"product_id":"nioxin-scalp-hair-thickening-treatment-6-8-fl-oz-for-color-treated-hair-lightweight-leave-in-serum","title":"NIOXIN Scalp \u0026 Hair Thickening Treatment 6.8 fl oz for Color-Treated Hair — Lightweight Leave-In Serum","description":"\u003cp\u003e\u003cstrong\u003eNIOXIN System 4 Scalp + Hair Thickening Treatment is a lightweight leave-in serum formulated to strengthen and visually thicken color-treated hair with progressed thinning while nourishing the scalp.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis professional-grade leave-in treatment is the finishing step in NIOXIN’s three-part System 4 regimen designed specifically for colored, chemically treated hair that shows signs of progressive thinning. The formula delivers antioxidants, botanicals and UV-protecting ingredients to the scalp and hair shaft to help reduce breakage, improve manageability and create a healthier environment for fuller-looking hair appearance.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this treatment support thinning, color-treated hair?\u003c\/h3\u003e\n\n\u003cp\u003eThe serum targets fragile, chemically stressed strands and the scalp environment to help increase hair diameter and reduce visible thinning. It doesn't alter hair color and works alongside the System 4 cleanser and conditioner to amplify hair structure and resilience.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDelivers nutrients and antioxidants to the scalp and hair fiber\u003c\/li\u003e\n  \u003cli\u003eContains UV-protection to help shield color-treated hair\u003c\/li\u003e\n  \u003cli\u003eDesigned to increase hair diameter for a fuller visual effect\u003c\/li\u003e\n  \u003cli\u003eFormulated for use as the leave-in final step of System 4\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen and how should I apply the NIOXIN Scalp + Hair Thickening Treatment?\u003c\/h3\u003e\n\n\u003cp\u003eUse the treatment on damp hair after shampooing and conditioning with the matching System 4 products. Apply evenly at the scalp and through lengths, then style as usual; it's a leave-in product so rinsing is not required.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eApply daily or as directed after System 4 Cleanser and Scalp Therapy Conditioner\u003c\/li\u003e\n  \u003cli\u003eDistribute from roots to mid-lengths for even coverage\u003c\/li\u003e\n  \u003cli\u003eLeave in—no rinsing—to maintain hair diameter benefits throughout the day\u003c\/li\u003e\n  \u003cli\u003eWorks well under styling products and provides a lightweight finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat visible results can I expect and in what timeframe?\u003c\/h3\u003e\n\n\u003cp\u003eVisible improvements in fullness and hair diameter are often noticed with consistent use; many users report enhanced thickness and density within weeks when the full three-step system is used. Results vary by individual and depend on consistent regimen use and hair condition.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDesigned to increase hair thickness and fullness with regular use\u003c\/li\u003e\n  \u003cli\u003eHelps minimize breakage that contributes to thinning appearance\u003c\/li\u003e\n  \u003cli\u003eSupports scalp health by clearing impurities and excess sebum\u003c\/li\u003e\n  \u003cli\u003eCompatible with color-treated hair and helps protect color from environmental stress\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this treatment safe for chemically treated or sensitive scalps?\u003c\/h3\u003e\n\n\u003cp\u003eThe formula is created for colored and chemically processed hair and aims to refresh and protect the scalp without altering hair color. If you have a sensitive scalp or specific allergies, patch testing or consulting a professional stylist is recommended before regular use.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSpecifically formulated for color-treated, damaged hair with progressed thinning\u003c\/li\u003e\n  \u003cli\u003eContains botanicals and antioxidants to nourish the scalp\u003c\/li\u003e\n  \u003cli\u003eDeveloped by a brand experienced in thinning-hair solutions\u003c\/li\u003e\n  \u003cli\u003ePatch test if you have known sensitivities or allergies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: NIOXIN System 4 Scalp + Hair Thickening Treatment is intended for people with color-treated or chemically processed hair experiencing progressed thinning who want a lightweight, salon-quality leave-in serum to strengthen strands, protect color, and improve the look of density. It pairs with the System 4 Cleanser and Scalp Therapy Conditioner as part of a targeted three-step regimen for scalp health and fuller-looking 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: Can I use NIOXIN System 4 if my hair is color-treated?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. System 4 is formulated specifically for colored, chemically treated hair with 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: Do I rinse out the Scalp + Hair Thickening Treatment?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This is a leave-in serum applied after cleansing and conditioning; distribute evenly and style without rinsing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NIOXIN","offers":[{"title":"Default Title","offer_id":58346430923139,"sku":"B0054Y0PMK","price":42.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1023\/2696\/0515\/files\/nioxin-system4-front-packaging.jpg?v=1782632991","url":"https:\/\/origin-beauty.com\/products\/nioxin-scalp-hair-thickening-treatment-6-8-fl-oz-for-color-treated-hair-lightweight-leave-in-serum","provider":"Origin Beauty","version":"1.0","type":"link"}