---
product_id: 202250886
title: "Density Defend Diamax Advanced Hair Thickening Serum With Caffeine, Niacinamide & Panthenol For Thicker, Fuller-Looking Hair 3.38 Fl oz"
price: "R1803"
currency: ZAR
in_stock: true
reviews_count: 13
url: https://www.desertcart.co.za/products/202250886-density-defend-diamax-advanced-hair-thickening-serum-with-caffeine-niacinamide
store_origin: ZA
region: South Africa
---

# Energizes scalp follicles Strengthens hair strands Boosts hair diameter visibly Density Defend Diamax Advanced Hair Thickening Serum With Caffeine, Niacinamide & Panthenol For Thicker, Fuller-Looking Hair 3.38 Fl oz

**Price:** R1803
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock your hair’s full potential—thicker, stronger, unstoppable.

## Quick Answers

- **What is this?** Density Defend Diamax Advanced Hair Thickening Serum With Caffeine, Niacinamide & Panthenol For Thicker, Fuller-Looking Hair 3.38 Fl oz
- **How much does it cost?** R1803 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/202250886-density-defend-diamax-advanced-hair-thickening-serum-with-caffeine-niacinamide)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Advanced HTX Technology:** Powered by caffeine, niacinamide & panthenol to nourish scalp and boost hair growth.
- • **Salon-Trusted Expertise:** Backed by 25+ years of thinning hair research and endorsed by The Institute of Trichologists.
- • **Breakage Defense Formula:** Strengthens and protects hair roots and ends to reduce damage and promote resilience.
- • **Universal Hair Compatibility:** Designed for all hair types, perfect for daily use in your professional grooming routine.
- • **Fuller, Thicker Hair Instantly:** Experience up to 8 hours of visibly thicker hair—like having 11,000 extra strands.

## Overview

Nioxin Density Defend Diamax Advanced Hair Thickening Serum is a premium 3.38 fl oz treatment formulated with HTX technology, caffeine, niacinamide, and panthenol. It visibly thickens hair for up to 8 hours by increasing strand diameter and strengthens hair to reduce breakage. Suitable for all hair types, this serum nourishes the scalp and supports healthier, fuller-looking hair with daily use, backed by over 25 years of professional thinning hair expertise.

## Description

desertcart.com: Nioxin Density Defend Diamax Advanced Hair Thickening Serum | With Caffeine, Niacinamide & Panthenol | For Thicker, Fuller-Looking Hair | 3.38 Fl Oz : Beauty & Personal 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: Great product for thinning hair - I have thinning hair on top due to aging. This Nioxin just adds strength and depth to my hair. I love it! I have been using for many years.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B086G3LFD1 |
| Best Sellers Rank | #24,274 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #196 in Hair Regrowth Treatments |
| Customer Reviews | 4.4 4.4 out of 5 stars (989) |
| Item model number  | 3614228816113 |
| Manufacturer  | Nioxin |
| Product Dimensions  | 2.25 x 2.36 x 6.89 inches; 3.4 ounces |

## Product Details

- **Hair Type:** All
- **Item Form:** Serum
- **Liquid Volume:** 3.4 Fluid Ounces
- **Scent:** Unscented

## Images

![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/61A8UgXX8bL.jpg)

## Available Options

This product comes in different **Style** options.

## 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!

### ⭐⭐⭐⭐⭐ Great product for thinning hair
*by H***R on February 2, 2026*

I have thinning hair on top due to aging. This Nioxin just adds strength and depth to my hair. I love it! I have been using for many years.

### ⭐⭐⭐⭐ Great product
*by T***S on December 28, 2025*

I love this product. Makes my hair feel thick, smooth and shiny.

## 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.co.za/products/202250886-density-defend-diamax-advanced-hair-thickening-serum-with-caffeine-niacinamide](https://www.desertcart.co.za/products/202250886-density-defend-diamax-advanced-hair-thickening-serum-with-caffeine-niacinamide)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-26*