--- product_id: 657396188 title: "System 4 - Hair Thickening System For Damaged Hair with Progressed Thinning - Biotin & Niacinamide - Shampoo, Conditioner, Serum" brand: "nioxin" price: "€ 86.35" currency: EUR in_stock: true reviews_count: 8 category: "Nioxin" url: https://www.desertcart.hr/products/657396188-system-4-hair-thickening-system-for-damaged-hair-with-progressed store_origin: HR region: Croatia --- # Biotin & niacinamide nourish roots Strengthens hair against breakage Gentle scalp cleanser removes impurities System 4 - Hair Thickening System For Damaged Hair with Progressed Thinning - Biotin & Niacinamide - Shampoo, Conditioner, Serum **Brand:** nioxin **Price:** € 86.35 **Availability:** ✅ In Stock ## Summary > ✨ Unlock thicker, healthier hair — because your scalp deserves the VIP treatment! 💆‍♂️ ## Quick Answers - **What is this?** System 4 - Hair Thickening System For Damaged Hair with Progressed Thinning - Biotin & Niacinamide - Shampoo, Conditioner, Serum by nioxin - **How much does it cost?** € 86.35 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/657396188-system-4-hair-thickening-system-for-damaged-hair-with-progressed) ## Best For - nioxin enthusiasts ## Why This Product - Trusted nioxin brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Scalp Detox Ritual:** Deep cleanse to clear sebum and impurities, creating the perfect growth environment. - • **Root Revival Complex:** Biotin, niacinamide & caffeine team up to awaken dormant follicles. - • **Color Care Confidence:** Protect your colored hair while reversing dryness and damage. - • **Breakage Defense Boost:** Fortify fragile strands with every wash for visibly stronger hair. - • **Visible Thickness in 30 Days:** Clinically proven to add fullness and reduce thinning with consistent use. ## Overview Nioxin System 4 is a professional-grade hair thickening kit designed specifically for dry, damaged, and color-treated hair experiencing progressed thinning. Featuring a powerful blend of biotin, niacinamide, caffeine, and peppermint oil, it strengthens hair against breakage, nourishes roots, and detoxifies the scalp. With daily use, users report noticeable thickness and improved scalp health within 30 days, making it a trusted solution for mature, thinning hair. ## Description Product Description "We are Nioxin, the #1 Professional hair care brand for thicker, fuller hair. We are pioneers of a hair movement that's never going to stop. Built on clinically proven solutions, we turn scalp science into gentle scalp care and hair thickening products - because everyone deserves to grow thicker, fuller hair they can see and feel. Nioxin Pro Clinical's System Kit 4 is a deep conditioning hair treatment designed for dry, damaged, coloured hair with progressed thinning. Clinically and dermatologically tested, this complete scalp and hair thickening system thickens and strengthens your hair against breakage while providing colour protection. 8 out 10 users saw thicker, fuller hair in 30 days. This professional hair care is formulated with a powerful blend of niacinamide, biotin and caffeine to help nourish the hair root, stimulate hair follicles and strengthen the hair. The three-step regimen begins with the Scalp + Hair Shampoo. Start by applying it to wet hair, gently massaging it into the scalp and hair for one minute before rinsing thoroughly. This gentle cleanser works to remove buildup, including follicle-clogging sebum and environmental residues, preparing the scalp for the next steps. Next, apply the Scalp + Hair Conditioner. Distribute it evenly throughout the hair and scalp, leaving it on for 1-3 minutes. Rinse thoroughly. This conditioner helps to restore moisture balance, while protecting against breakage. Finally, apply the Scalp + Hair Thickening Treatment. Shake it well before applying directly to the entire scalp. Gently massage it in. Do not rinse. This Scalp + Hair Thickening Treatment delivers essential nutrients, antioxidants, and botanicals to the scalp, nourishing and protecting it against damage. It also helps to refresh the scalp and increase the volume of every strand, leaving your hair looking fuller and thicker. This treatment contains UV protecting ingredients for the scalp and hair. For optimal results, use the complete Nioxin System Kit 4 daily. Add to your self care regimen and pair with Nioxin Hair Mousse, Hairspray or other styling products. Give Nioxin Scalp + Hair Thickening System as the perfect beauty gift. " Ingredients SYSTEM KIT 4 SHAMPOO: Aqua/Water/Eau, Sodium Laureth Sulfate, Sodium Lauryl Sulfate, Sodium Chloride, PPG-2 Hydroxyethyl Coco/Isostearamide, Sodium Benzoate, Citric Acid, Salicylic Acid, Mentha Arvensis Leaf Oil, Mentha Piperita (Peppermint) Oil, Tetrasodium EDTA, Trisodium Ethylenediamine Disuccinate, Methylparaben, Polyquaternium-10, Propylene Glycol, Sodium Hydroxide, Limonene, Camellia Sinensis Leaf Extract, Cystine Bis-PG-Propyl Silanetriol, Niacinamide, Panthenol, Biotin, Lecithin, Tocopheryl Acetate, Foeniculum Vulgare (Fennel) Fruit Extract, Yellow 5 (CI 19140), Acer Saccharum (Sugar Maple) Extract, Citrus Limon (Lemon) Peel Extract, Saccharum Officinarum/Sugar Cane Extract/Extrait de canne à sucre, Vaccinium Myrtillus Leaf Extract, Faex Extract/Yeast Extract/Extrait de levure, Propylparaben, Blue 1 (CI 42090), Phenoxyethanol, Citrus Aurantium Dulcis (Orange) Fruit Extract, Red 33 (CI 17200), Maltodextrin, Potassium Sorbate, Sodium Citrate, Ethylparaben, Butylparaben, Sodium Xylenesulfonate. SYSTEM KIT 4 CONDITIONER: Aqua/Water/Eau, Cetyl Alcohol, Stearamidopropyl Dimethylamine, Stearyl Alcohol, Distearyldimonium Chloride, Phenoxyethanol, Benzyl Alcohol, Cetearyl Alcohol, Hydroxypropyl Guar, Glyceryl Stearate, Oleyl Alcohol, Mentha Piperita (Peppermint) Oil, Mentha Arvensis Leaf Oil, Propylparaben, Polysorbate 60, Propylene Glycol, Methylparaben, EDTA, Hydroxyethylcellulose, Citric Acid, Quaternium-80, Limonene, Camellia Sinensis Leaf Extract, Cystine Bis-PG-Propyl Silanetriol, Tocopheryl Acetate, Lecithin, Biotin, Panthenol, Niacinamide, Foeniculum Vulgare (Fennel) Fruit Extract, Disodium Phosphate, Acer Saccharum (Sugar Maple) Extract, Vaccinium Myrtillus Leaf Extract, Citrus Limon (Lemon) Peel Extract, Saccharum Officinarum/Sugar Cane Extract/Extrait de canne à sucre, Faex Extract/Yeast Extract/Extrait de levure, Sodium Phosphate, Citrus Aurantium Dulcis (Orange) Fruit Extract, Maltodextrin, Blue 1 (CI 42090), Potassium Sorbate, Sodium Benzoate, Ethylparaben, Butylparaben SYSTEM KIT 4 TREATMENT: Aqua/Water/Eau, Niacinamide, Phenylbenzimidazole Sulfonic Acid, Caffeine, Polysorbate 20, Benzophenone-4, Phenoxyethanol, Sodium Benzoate, PEG-12 Dimethicone, Benzyl Alcohol, Sodium Hydroxide, Cocamidopropyl Betaine, Acetamide MEA, Tetrasodium EDTA, Propylene Glycol, Methyl Nicotinate, Mentha Arvensis Leaf Oil, Parfum/Fragrance, Polysorbate 80, Polysorbate 60, PEG-23M, Mentha Piperita (Peppermint) Oil, Limonene, Camellia Sinensis Leaf Extract, Cystine Bis-PG-Propyl Silanetriol, Lecithin, Tocopheryl Acetate, Biotin, Foeniculum Vulgare (Fennel) Fruit Extract, Silica, Citrus Limon (Lemon) Peel Extract, Saccharum Officinarum/Sugar Cane Extract/Extrait de canne à sucre, Acer Saccharum (Sugar Maple) Extract, Vaccinium Myrtillus Leaf Extract, Citric Acid, Faex Extract/Yeast Extract/Extrait de levure, Propylparaben, Citrus Aurantium Dulcis (Orange) Fru Directions Shampoo scalp & massage evenly. Rub conditioner from root to ends. Apply treatment to scalp & hair, from root to ends. Don't rinse. Use system daily. Safety Warning CAUTION: Do not get into the eyes. Keep out of reach of children. For any questions or concerns about side effects, always consult a medical professional. Review: Rescue in a bottle!! - I've given these products a full 2 months before I reviewed. Bottom line is they work. Before: my hair was coloured and long, started thinning after diet and surgery.( I'm an older lady) really dry and thin, tried everything all my usual conditioners nothing worked, I was wearing it up all the time as I could do nothing with it. After: first shampoo, condition and scalp treatment. Hair immediately felt soft and fed.. I only wash my hair twice a week but now it is longer thicker and in good condition, I can use straighteners again. No shedding and my hair is growing back around my hairline. Excellent products. Persevere to see good results 5 stars Review: Works well when used consistently - I’ve used this product twice during periods when my hair shedding increased, and both times I noticed a clear difference. When used regularly, my hair fall reduced significantly. It doesn’t work overnight, but with consistent use it really helps strengthen the hair and improve scalp condition. I personally saw results, which is why I keep repurchasing it. I would definitely recommend it to anyone experiencing hair thinning or increased shedding, as long as they are willing to use it consistently. ## Features - HAIR & SCALP TREATMENT: Strengthens hair against breakage while providing colour protection - hair treatments for dry damaged hair with progressed thinning - BIOTIN HAIR GROWTH: With niacinamide, biotin & caffeine to help nourish the hair root, stimulate hair follicles & strengthen hair - SCALP TREATMENT: Gentle cleanser for scalp - removes impurities & follicle-clogging sebum for healthier hair growth environment - HOW TO USE: Apply volume shampoo to scalp & massage evenly - rub conditioner from root to ends - apply scalp treatment to scalp & hair - NIOXIN ROUTINE: For best results, use Nioxin System Kit 4 daily & preferred Nioxin hair styling products - add to your self care regimen or give the perfect beauty gift ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DFCQZQL4 | | Benefits | Advanced hair treatment for dry damaged hair - added thickness & fullness in 30 days for progressed thinning hair | | Best Sellers Rank | 1,152 in Beauty ( See Top 100 in Beauty ) 7 in Scalp Treatments | | Brand | NIOXIN | | Brand Name | NIOXIN | | Customer Reviews | 4.3 out of 5 stars 818 Reviews | | Hair Type | Ageing, Damaged, Thinning, coloured, dry | | Hair type | Ageing, Damaged, Thinning, coloured, dry | | Item Form | Liquid | | Item Weight | 856 Grams | | Item form | Liquid | | Item weight | 856 Grams | | Manufacturer | Nioxin Pro Clinical | | Manufacturer Part Number | 99350180581 | | Material Features | Possible natural scent | | Product benefits | Advanced hair treatment for dry damaged hair - added thickness & fullness in 30 days for progressed thinning hair Product benefits Advanced hair treatment for dry damaged hair - added thickness & fullness in 30 days for progressed thinning hair See more | | Scent | mint/peppermint | | Scent Name | mint/peppermint | | Special Ingredients | Niacinamide, Biotin, Caffeine, Mentha Arvensis Leaf Oil (Peppermint Oil) | | Unit Count | 856.0 gram | ## Product Details - **Brand:** NIOXIN - **Hair type:** Ageing, Damaged, Thinning, coloured, dry - **Item form:** Liquid - **Scent:** mint/peppermint ## Images ![System 4 - Hair Thickening System For Damaged Hair with Progressed Thinning - Biotin & Niacinamide - Shampoo, Conditioner, Serum - Image 1](https://m.media-amazon.com/images/I/71lmn92D2ZL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Rescue in a bottle!! *by C***G on 5 June 2025* I've given these products a full 2 months before I reviewed. Bottom line is they work. Before: my hair was coloured and long, started thinning after diet and surgery.( I'm an older lady) really dry and thin, tried everything all my usual conditioners nothing worked, I was wearing it up all the time as I could do nothing with it. After: first shampoo, condition and scalp treatment. Hair immediately felt soft and fed.. I only wash my hair twice a week but now it is longer thicker and in good condition, I can use straighteners again. No shedding and my hair is growing back around my hairline. Excellent products. Persevere to see good results 5 stars ### ⭐⭐⭐⭐⭐ Works well when used consistently *by E***. on 25 January 2026* I’ve used this product twice during periods when my hair shedding increased, and both times I noticed a clear difference. When used regularly, my hair fall reduced significantly. It doesn’t work overnight, but with consistent use it really helps strengthen the hair and improve scalp condition. I personally saw results, which is why I keep repurchasing it. I would definitely recommend it to anyone experiencing hair thinning or increased shedding, as long as they are willing to use it consistently. ### ⭐⭐⭐⭐ Quality always first ! *by D***S on 30 November 2025* My hair looks great after using these hair products for a while now !! ## Frequently Bought Together - Nioxin System 4 - Hair Thickening System For Damaged Hair with Progressed Thinning - Biotin & Niacinamide - Shampoo, Conditioner, Serum - Nioxin 3D Intensive Diaboost 100 ml - Nioxin System 2 - Hair Thickening System For Natural Hair with Progressed Thinning - Biotin & Niacinamide - Shampoo, Conditioner, Serum --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/657396188-system-4-hair-thickening-system-for-damaged-hair-with-progressed](https://www.desertcart.hr/products/657396188-system-4-hair-thickening-system-for-damaged-hair-with-progressed) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-22*