--- product_id: 202250886 title: "NIOXIN Density Defend Diamax Advanced Hair Thickening Serum | With Caffeine, Niacinamide & Panthenol for Thicker, Fuller-Looking Hair 3.38 Fl Oz" brand: "nioxin" price: "387.46 DT" currency: TND in_stock: true reviews_count: 13 category: "Nioxin" url: https://www.desertcart.tn/products/202250886-nioxin-density-defend-diamax-advanced-hair-thickening-serum-with-caffeine store_origin: TN region: Tunisia --- # Energizes scalp & follicles Strengthens & protects hair Boosts hair diameter visibly NIOXIN Density Defend Diamax Advanced Hair Thickening Serum | With Caffeine, Niacinamide & Panthenol for Thicker, Fuller-Looking Hair 3.38 Fl Oz **Brand:** nioxin **Price:** 387.46 DT **Availability:** ✅ In Stock ## Summary > ⚡ Unlock your hair’s full potential—thicker, stronger, unstoppable! ## Quick Answers - **What is this?** NIOXIN Density Defend Diamax Advanced Hair Thickening Serum | With Caffeine, Niacinamide & Panthenol for Thicker, Fuller-Looking Hair 3.38 Fl Oz by nioxin - **How much does it cost?** 387.46 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/202250886-nioxin-density-defend-diamax-advanced-hair-thickening-serum-with-caffeine) ## 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 - • **Damage Defense Formula:** Strengthens hair roots and ends to reduce breakage and promote longer-lasting hair health. - • **Salon-Grade Confidence:** Backed by 25+ years of expertise and trusted by professional stylists worldwide. - • **Advanced HTX Technology:** Infused with caffeine, panthenol, and niacinamide to nourish scalp and boost hair diameter. - • **Universal Hair Compatibility:** Designed for all hair types, making it your daily go-to for thicker, healthier hair. - • **Fuller, Thicker Hair Instantly:** Experience up to 8 hours of visibly thicker hair—like having 11,000 more strands. ## Overview NIOXIN Density Defend Diamax Advanced Hair Thickening Serum uses cutting-edge HTX technology to visibly thicken hair for up to 8 hours by boosting individual strand diameter. It strengthens and protects hair from breakage while nourishing the scalp with key ingredients like caffeine and niacinamide. Suitable for all hair types, this salon-grade serum supports healthier, fuller-looking hair with daily use. ## Description Product Description Nioxin Diamax Advanced Treatment with HTX technology is your premium treatment for stronger, longer hair tomorrow. Visibly thickens hair (up to 8 hours) so it's like having 11,000 more hair strands. With daily use, protects existing hair roots and ends against damage and breakage allowing hair to grow longer. HTX technology includes ingredients which provide notable benefits for skin care such as caffeine, panthenol and niacinamide that deliver visibly thicker-looking hair. *vs. non-conditioning shampoo for up to 8 hours. **based on scalp with an average of 100,000 hairs, vs no treatment. Brand Story Nioxin is the only salon brand with 25+ years of experience in thinning hair. Nioxin, supported by The Institute of Trichologists, believes the scalp is an extension of facial skin and requires the same attention and care. Review: This works!!! Worth every penny! - My hair is thinning badly due to low iron and a 100lb glp-1 weight loss. It has been a very depressing time. My hairdresser said a lot of her clients were having luck with this - and WOW! It’s amazing. My hair feels healthier and is definitely thicker, enabling me to style it to cover the thin or bald areas. Combined with a Nutrafal regimen, I have had real growth and am finally feeling better about myself. Give it a try if you suffer with hair loss like me! Review: Thicker hair! - I absolutely love this product! I have an area around my bangs where you can see straight through to the scalp. My hairdresser recommended it to me, saying with even the first use, the hair would appear much thicker, leaving less scalp visible. Well, let me tell you, there was NO scalp visible. It obviously didn’t miracle grow my hair that day, but it seriously boosts the existing hair, making it look MUCH thicker and fuller. She also said it is great for energizing the area, which helps with hair regrowth. I’ll follow up with a later review about that part. If you need something to fill in some thin or balding spots, while waiting on other hair growth formulas to kick in, this is a great product for you! ## Features - Fuller, Thicker-Looking Hair: Nioxin Intensive Diamax Advanced is a hair thickening treatment that enhances the appearance of fuller, thicker hair. - Boosts Hair Diameter: This advanced formula boosts the diameter of each individual hair strand, creating a voluminous and thicker look. - Strengthens and Protects: The treatment strengthens and protects the hair, reducing breakage and promoting healthier, more resilient strands. - Nourishes and Energizes the Scalp: Diamax Advanced nourishes the scalp, providing essential nutrients and energizing the hair follicles for improved hair growth. - Suitable for All Hair Types: Diamax Advanced is suitable for all hair types and can be used daily as part of your hair care routine. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B086G3LFD1 | | Best Sellers Rank | #19,772 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #154 in Hair Regrowth Treatments | | Brand | NIOXIN | | Brand Name | NIOXIN | | Customer Reviews | 4.4 out of 5 stars 1,049 Reviews | | Hair Type | All | | Item Form | Serum | | Item Volume | 0.34 fluid ounces | | Item Weight | 3.4 ounces | | Manufacturer | Nioxin | | Manufacturer Part Number | 3614228816113 | | Model Number | 3614228816113 | | Number of Items | 1 | | Recommended Uses For Product | Professional Salon & Spa | | Scent | Unscented | | Scent Name | Unscented | | Unit Count | 3.38 Ounce | ## Product Details - **Brand:** NIOXIN - **Item Form:** Serum - **Item Weight:** 3.4 ounces - **Recommended Uses For Product:** Professional Salon & Spa - **Scent:** Unscented ## Images ![NIOXIN Density Defend Diamax Advanced Hair Thickening Serum | With Caffeine, Niacinamide & Panthenol for Thicker, Fuller-Looking Hair 3.38 Fl Oz - Image 1](https://m.media-amazon.com/images/I/61aRjYwq5iL.jpg) ## Questions & Answers **Q: Does the nioxin diamax get combed thru the hair or just applied at scalp?** A: I am happy to answer this for you today. The following is manufacture instructions for best results: Apply evenly throughout the scalp. Massage gently at the roots and comb through. Do not rinse off. For exceptional results use daily on wet or dry hair. I hope this answered your question today. Have a Wonderful Nioxin Hair Day! **Q: Can this be used with the hair thickrning spray?** A: Thank you for contacting Nioxin Professional. We value your loyalty to our brand. Yes, Nioxin's Thickening Spray can be used with Diamax. Diamax should be focused at the root whereas the thickening spray should be used mid length to ends. **Q: Is this sulfite free?** A: Thank you for contacting Nioxin. We value your brand loyalty. Nioxin Diamaz Hair Thickening Treatment is sulfate free. **Q: Would this also be considered a heat protectant?** A: I use this product when I wash my hair...it is great strengthening serum...love it...Highly recommended by my hairdresser...however, to be safe I still use a heat protectant ## Customer Reviews ### ⭐⭐⭐⭐⭐ This works!!! Worth every penny! *by A***R on January 7, 2026* My hair is thinning badly due to low iron and a 100lb glp-1 weight loss. It has been a very depressing time. My hairdresser said a lot of her clients were having luck with this - and WOW! It’s amazing. My hair feels healthier and is definitely thicker, enabling me to style it to cover the thin or bald areas. Combined with a Nutrafal regimen, I have had real growth and am finally feeling better about myself. Give it a try if you suffer with hair loss like me! ### ⭐⭐⭐⭐⭐ Thicker hair! *by S***R on September 11, 2024* I absolutely love this product! I have an area around my bangs where you can see straight through to the scalp. My hairdresser recommended it to me, saying with even the first use, the hair would appear much thicker, leaving less scalp visible. Well, let me tell you, there was NO scalp visible. It obviously didn’t miracle grow my hair that day, but it seriously boosts the existing hair, making it look MUCH thicker and fuller. She also said it is great for energizing the area, which helps with hair regrowth. I’ll follow up with a later review about that part. If you need something to fill in some thin or balding spots, while waiting on other hair growth formulas to kick in, this is a great product for you! ### ⭐⭐⭐⭐ Works, but *by D***H on June 14, 2026* Does help with making hair look fuller and thicker. But does dry my hair out. I’ve stopped using it because I don’t think the chemicals are doing my hair any good. ## Frequently Bought Together - Nioxin Density Defend Diamax Advanced Hair Thickening Serum With Caffeine, Niacinamide & Panthenol For Thicker, Fuller-Looking Hair 3.38 Fl oz - Nioxin Night Density Rescue Serum | Overnight Hair Thickening Serum | Protects Against Hair Breakage | Intensive Treatment with Oxydine | 2.4 Fl oz. - Nioxin Hair Booster Serum | Advanced Leave-In Hair Treatment| Strengthens and Conditions | 3.4 Fl oz. --- ## 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.tn/products/202250886-nioxin-density-defend-diamax-advanced-hair-thickening-serum-with-caffeine](https://www.desertcart.tn/products/202250886-nioxin-density-defend-diamax-advanced-hair-thickening-serum-with-caffeine) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-05*