---
product_id: 69564826
title: "Scalp + Hair Thickening System Kits | For Natural, Colored, & Damaged Hair with Light to Progressed Thinning | Strengthen & Boost Hair Density with Niacinamide & Biotin | 1 Month Supply"
brand: "nioxin"
price: "$100.74"
currency: USD
in_stock: true
reviews_count: 13
category: "Nioxin"
url: https://www.desertcart.us/products/69564826-scalp-hair-thickening-system-kits-for-natural-colored-and-damaged
store_origin: US
region: United States of America
---

# Niacinamide & Biotin scalp nourishment 85% thicker hair in 30 days 1-month daily supply, easy regimen Scalp + Hair Thickening System Kits | For Natural, Colored, & Damaged Hair with Light to Progressed Thinning | Strengthen & Boost Hair Density with Niacinamide & Biotin | 1 Month Supply

**Brand:** nioxin
**Price:** $100.74
**Availability:** ✅ In Stock

## Summary

> 🌟 Unlock fuller, thicker hair — because your scalp deserves the VIP treatment!

## Quick Answers

- **What is this?** Scalp + Hair Thickening System Kits | For Natural, Colored, & Damaged Hair with Light to Progressed Thinning | Strengthen & Boost Hair Density with Niacinamide & Biotin | 1 Month Supply by nioxin
- **How much does it cost?** $100.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/69564826-scalp-hair-thickening-system-kits-for-natural-colored-and-damaged)

## 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

- • **Salon-Grade, Daily Use System:** Professional-quality kit with shampoo, conditioner, and treatment foam for a simple, effective 1-month routine.
- • **Clinically Proven Thickness Boost:** 85% of users see visibly thicker, fuller hair in just 30 days—don’t get left behind!
- • **Advanced Scalp Detox & Nourishment:** Gentle cleansing removes buildup while botanicals and antioxidants revitalize your scalp’s health.
- • **Minimizes Hair Breakage & Thinning:** Strengthens hair resilience to reduce breakage and promote lasting density and fullness.
- • **Color-Safe & Damage-Repairing Formula:** Specifically designed for natural, colored, and damaged hair with progressed thinning—protect your investment.

## Overview

Nioxin Scalp + Hair Thickening System Kit 4 is a professional-grade, 1-month supply hair care solution formulated with niacinamide, biotin, and salicylic acid. Clinically shown to increase hair thickness, density, and fullness by over 80%, it targets dry, damaged, color-treated hair with progressed thinning. This system detoxifies the scalp, strengthens hair resilience to reduce breakage, and nourishes with antioxidants and UV protection, delivering visible results in just 30 days.

## Description

Product Description Nioxin System 4 Hair Care Kit for Color Treated Hair with Progressed Thinning delivers denser-looking hair with increased protection against damage you'll enjoy. This unique set of three professional hair products, based on an advanced skin care approach, is specially formulated as a hair thickening treatment, delivering denser-looking hair. The Volumizing Nioxin System 4 regimen reduces hair loss due to breakage and strengthens the hair, while refreshing the scalp and delivering a healthy shine to Colored Treated Hair with Progressed thinning. Nioxin Cleanser Shampoo removes sebum and environmental residues from the scalp and hair. Nioxin Scalp Therapy Conditioner is a lightweight conditioner that helps provide hair resilience and control moisture balance. Nioxin Scalp & Hair Treatment refreshes the scalp and increases hair volume. Reduces hair loss due to breakage and strengthens the hair, while refreshing the scalp and delivering a healthy shineDelivers, Thicker, Fuller Hair by removing follicle clogging sebum, fatty acids and environmental residuesComplete professional hair thickening treatment for colored hair with progressed thinningProvides hair resulience and control moisture balance, as well as a refreshed scalp environmentNioxin System 4 helps you achieve thicker, fuller looking hair and restore moisture balanceAward: Behind the Chair Stylist Choice Winner: Favorite Thinning Haircare, 16 consecutive yearsFollow Suggested Use for Best Results - Step 1: Massage to hair and scalp, rinse Step 2: Apply from scalp to ends, rinse Step 3: Shake, apply to scalp, do not rinseNioxin Scalp and Hair Treatments refresh the scalp and increases hair volumeComplement any Nioxin Hair System Kit with Nioxin Intensive Care productsEnroll in Subscribe and Save to ensure you never run out. About Nioxin Nioxin is the only salon brand with 25+ years of experience in THINNING HAIR. Nioxin, supported by The Institute of Trichologists, believes SCALP HEALTH is an extension of facial skin and requires the same attention and care.

Review: Greatly improved my hair texture and manageability. - UPDATE: After 35 days of use I see obvious improvement. The short, fine hairs at my hairline (particularly at the temples) NEVER seemed to grow UNTIL I started using Nioxin 35 days ago. Hair at my temples was very sparse and my scalp showed through. Now it’s nearly filled in. I can’t honestly say if there is more growth on top of my head yet, but the hair seems much fuller. I realize it takes time for growth that begins below the surface to become apparent. In the meantime, I’m thrilled that my hair has become soft and so much more manageable. Another plus, just a small amount of shampoo and conditioner quickly turn into a rich lather. I don’t think I’ll ever use another product again. Purchased the 30 day supply. I’ve used the product generously and still have a lot left after 35 daily shampoos. Highly recommend it. Posted 35 days ago: I’ve been worried about thinning hair for a long time (female, 77). Decided to try this before Rogaine. Instructions say you must use it every day for the first month. I don’t usually wash my hair every day because it’s shoulder length, but I’m willing to put forth the extra effort to gain fuller hair! It has been 10 days since I began the regimen and my hair feels transformed! The shampoo and conditioner lather up super fast and have a really nice, light fragrance. The final step takes me a few extra minutes because I want to be sure to get good scalp coverage (be sure to shake the bottle until you don’t hear the contents moving), then I use a wide tooth comb to distribute it through my hair. I know it’s too soon to expect to see new hair growth on my scalp, but my center part and extreme thinning at the temples seem very much improved due to the new appearance of fullness. My hair feels like it’s alive again - nice movement and soft feel. I can’t wait to show my hairdresser! I should also note that I also began to massage my scalp twice daily to stimulate root growth. I’m all in on this product. Have taken multiple brands of hair growth pills, and have taken Biotin (5,000 mg) for many, many years. Working only from the “inside” hasn’t done it for me, but I am VERY hopeful that adding this product and working from the “outside” will be a game changer. I will update in a few months, but I have high hopes due to the new silky texture and fuller appearance.
Review: Noticeable Results After FIRST WASH!!! - Glory be to GOD!! Thank God that I found this product! Thank God for the person who started this company! Thank God for the people who work at Nioxin! Thank God for my hairdresser who recommended it! And Thank God that IT WORKED!!! I'm an early 40's female. After the first time I had COVID, I noticed my hair was falling out. Not in "clumps" so to speak, but definitely more than usual. The hair loss had started about a month after and seemed to subside within another month or two. But after this last time I had COVID, just when I thought the hair shedding was getting better, it got worse again. I love baking and cooking for others, but my hair shedding got to a point where I thought I'd never be able to do that again. One of my BIGGEST FEARS was that someone would find a hair in the food I made. It did happen to my immediate family a couple of times, and that was bad enough. But if it happened with friends, neighbors, or at a church potluck?! Oh, that would be mortifying! It was stressful to say the least. I had my blood tested and no hormonal imbalances, no deficiencies. As far as I knew, I didn't have any hair re-growth issues. But the growth just couldn't keep up with the loss. When I washed my hair and combed it out, I could see scalp far too easily. I became concerned. To a point where I perused the wigs on desertcart...in case it came down to it. I also looked for hair growth shampoos, but I didn't want to pick just anything. I can be a bit of a conspiracy theorist when it comes to everyday products. Are these people truly offering me something that will help? Or will it hurt me only enough to try and get me to buy more product? How can I trust just any product off the internet? So, I asked my hair dresser. She recommended Nioxin System 2 for me. It seemed expensive, but I was willing to try it. And I was SHOCKED that after my FIRST WASH, I had significantly less hair loss! I wondered if perhaps my old shampoo had some chemicals that just killed my hair! I continued for a month, shampooing (It has a really good lather), combing the conditioner through my hair with my fingers, and adding the foam to my scalp with every wash. In the attached picture that shows my wash-by-wash progress, I finally hit a day where I had LESS THAN 15 STRANDS LOST IN ONE DAY by Wash 20. I was SOLD! Of course, I've continued to use it. After the first month, I changed from using the foam everyday to only 3-4 times a week. It's been almost 3 months now, and sometimes I still have 10 or so strands, and a little more so when I skip a day to wash my hair. But there have also been days where I've only had 2 or 4 strands of hair lost from my wash. IT'S TRULY AMAZING!!! Keep in mind that when I talk about hair loss on Nioxin (and the attached progress pics), I'm only referencing hair lost from the wash and conditioning. It's not reflective of a full day's loss. I had some in my hairbrush after, but not enough to make a significant difference. I rarely see loose strands on my shirts, and I haven't had one stuck in my bra since I started. (Ladies, you know the struggle. LOL) I love the minty scent! It's calming to me, and even more calming knowing that IT WORKS!!! I'll be honest. The foam does make my hair feel a little sticky when I put too much on. But it also makes my hair feel much fuller than usual and gives it great body! Before I purchased the product, I saw reviews with pictures of people with their face blotched red. The back of the foam bottle does say it's got a chemical that can cause temporary redness, but I haven't had any trouble with that. (But then again, I don't typically rub the foam on my face since it's supposed to be a scalp thing.) Also at this point, while I do see a little hair growth, I don't know if that's normal hair growth or growth due to Nioxin. It definitely doesn't feel too much thicker (without the foam), but I've heard your hair only grows 1/2 inch a month, so it will take some time. I thank God and Nioxin that I now feel like I have more of a chance to see myself with full, flowing locks again someday soon!

## Features

- 85% of consumers noticed a thickening effect, 80% noticed an increase in hair density, 80% noticed an increase in hair fullness
- Thickens the hair: Nioxin System Kit 4 is clinically designed to add thickness and fullness to dry, damaged, color-treated hair with progressed thinning, with visible results in just 30 days.
- Supports scalp health: The advanced formula of Nioxin System Kit 4 gently cleanses the scalp, removing impurities and excess sebum that can clog hair follicles, creating a healthier environment for the scalp.
- Reduces hair thinning: By strengthening hair resilience, Nioxin System Kit 2 helps minimize hair breakage, promoting the appearance of fuller, thicker hair while protecting the hair color.
- Nourishes the scalp: Infused with nourishing botanicals, antioxidants, and UV protecting ingredients, this kit's Scalp + Hair Thickening Treatment can nourish and revitalize the scalp, improving its overall health and condition.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F1Y2T3V |
| Active Ingredients | salicylic_acid |
| Age Range Description | Adult |
| Best Sellers Rank | #2,249 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #23 in Shampoo & Conditioner Sets |
| Brand | NIOXIN |
| Brand Name | NIOXIN |
| Customer Reviews | 4.3 out of 5 stars 10,403 Reviews |
| Hair Type | thinning |
| Item Form | Lotion |
| Item Volume | 11.83 Fluid Ounces |
| Item Weight | 14.1 Ounces |
| Manufacturer | Nioxin |
| Manufacturer Part Number | 99240009086 |
| Material Type Free | Dye Free |
| Model Number | 99240009086 |
| Number of Items | 1 |
| Recommended Uses For Product | Professional Salon & Spa |
| Scent | Unscented |
| Scent Name | Unscented |
| Unit Count | 1 Count |

## Product Details

- **Active Ingredients:** salicylic_acid
- **Brand:** NIOXIN
- **Item Form:** Lotion
- **Item Weight:** 14.1 Ounces
- **Scent:** Unscented

## Images

![Scalp + Hair Thickening System Kits | For Natural, Colored, & Damaged Hair with Light to Progressed Thinning | Strengthen & Boost Hair Density with Niacinamide & Biotin | 1 Month Supply - Image 1](https://m.media-amazon.com/images/I/71K17q7EkUL.jpg)
![Scalp + Hair Thickening System Kits | For Natural, Colored, & Damaged Hair with Light to Progressed Thinning | Strengthen & Boost Hair Density with Niacinamide & Biotin | 1 Month Supply - Image 2](https://m.media-amazon.com/images/I/91VOpL6gRlL.jpg)
![Scalp + Hair Thickening System Kits | For Natural, Colored, & Damaged Hair with Light to Progressed Thinning | Strengthen & Boost Hair Density with Niacinamide & Biotin | 1 Month Supply - Image 3](https://m.media-amazon.com/images/I/81Tdq-M1XfL.jpg)
![Scalp + Hair Thickening System Kits | For Natural, Colored, & Damaged Hair with Light to Progressed Thinning | Strengthen & Boost Hair Density with Niacinamide & Biotin | 1 Month Supply - Image 4](https://m.media-amazon.com/images/I/81d51Mwsh1L.jpg)
![Scalp + Hair Thickening System Kits | For Natural, Colored, & Damaged Hair with Light to Progressed Thinning | Strengthen & Boost Hair Density with Niacinamide & Biotin | 1 Month Supply - Image 5](https://m.media-amazon.com/images/I/81N7wBptbyL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Greatly improved my hair texture and manageability.
*by S***E on March 22, 2023*

UPDATE: After 35 days of use I see obvious improvement. The short, fine hairs at my hairline (particularly at the temples) NEVER seemed to grow UNTIL I started using Nioxin 35 days ago. Hair at my temples was very sparse and my scalp showed through. Now it’s nearly filled in. I can’t honestly say if there is more growth on top of my head yet, but the hair seems much fuller. I realize it takes time for growth that begins below the surface to become apparent. In the meantime, I’m thrilled that my hair has become soft and so much more manageable. Another plus, just a small amount of shampoo and conditioner quickly turn into a rich lather. I don’t think I’ll ever use another product again. Purchased the 30 day supply. I’ve used the product generously and still have a lot left after 35 daily shampoos. Highly recommend it. Posted 35 days ago: I’ve been worried about thinning hair for a long time (female, 77). Decided to try this before Rogaine. Instructions say you must use it every day for the first month. I don’t usually wash my hair every day because it’s shoulder length, but I’m willing to put forth the extra effort to gain fuller hair! It has been 10 days since I began the regimen and my hair feels transformed! The shampoo and conditioner lather up super fast and have a really nice, light fragrance. The final step takes me a few extra minutes because I want to be sure to get good scalp coverage (be sure to shake the bottle until you don’t hear the contents moving), then I use a wide tooth comb to distribute it through my hair. I know it’s too soon to expect to see new hair growth on my scalp, but my center part and extreme thinning at the temples seem very much improved due to the new appearance of fullness. My hair feels like it’s alive again - nice movement and soft feel. I can’t wait to show my hairdresser! I should also note that I also began to massage my scalp twice daily to stimulate root growth. I’m all in on this product. Have taken multiple brands of hair growth pills, and have taken Biotin (5,000 mg) for many, many years. Working only from the “inside” hasn’t done it for me, but I am VERY hopeful that adding this product and working from the “outside” will be a game changer. I will update in a few months, but I have high hopes due to the new silky texture and fuller appearance.

### ⭐⭐⭐⭐⭐ Noticeable Results After FIRST WASH!!!
*by T***T on August 15, 2024*

Glory be to GOD!! Thank God that I found this product! Thank God for the person who started this company! Thank God for the people who work at Nioxin! Thank God for my hairdresser who recommended it! And Thank God that IT WORKED!!! I'm an early 40's female. After the first time I had COVID, I noticed my hair was falling out. Not in "clumps" so to speak, but definitely more than usual. The hair loss had started about a month after and seemed to subside within another month or two. But after this last time I had COVID, just when I thought the hair shedding was getting better, it got worse again. I love baking and cooking for others, but my hair shedding got to a point where I thought I'd never be able to do that again. One of my BIGGEST FEARS was that someone would find a hair in the food I made. It did happen to my immediate family a couple of times, and that was bad enough. But if it happened with friends, neighbors, or at a church potluck?! Oh, that would be mortifying! It was stressful to say the least. I had my blood tested and no hormonal imbalances, no deficiencies. As far as I knew, I didn't have any hair re-growth issues. But the growth just couldn't keep up with the loss. When I washed my hair and combed it out, I could see scalp far too easily. I became concerned. To a point where I perused the wigs on Amazon...in case it came down to it. I also looked for hair growth shampoos, but I didn't want to pick just anything. I can be a bit of a conspiracy theorist when it comes to everyday products. Are these people truly offering me something that will help? Or will it hurt me only enough to try and get me to buy more product? How can I trust just any product off the internet? So, I asked my hair dresser. She recommended Nioxin System 2 for me. It seemed expensive, but I was willing to try it. And I was SHOCKED that after my FIRST WASH, I had significantly less hair loss! I wondered if perhaps my old shampoo had some chemicals that just killed my hair! I continued for a month, shampooing (It has a really good lather), combing the conditioner through my hair with my fingers, and adding the foam to my scalp with every wash. In the attached picture that shows my wash-by-wash progress, I finally hit a day where I had LESS THAN 15 STRANDS LOST IN ONE DAY by Wash 20. I was SOLD! Of course, I've continued to use it. After the first month, I changed from using the foam everyday to only 3-4 times a week. It's been almost 3 months now, and sometimes I still have 10 or so strands, and a little more so when I skip a day to wash my hair. But there have also been days where I've only had 2 or 4 strands of hair lost from my wash. IT'S TRULY AMAZING!!! Keep in mind that when I talk about hair loss on Nioxin (and the attached progress pics), I'm only referencing hair lost from the wash and conditioning. It's not reflective of a full day's loss. I had some in my hairbrush after, but not enough to make a significant difference. I rarely see loose strands on my shirts, and I haven't had one stuck in my bra since I started. (Ladies, you know the struggle. LOL) I love the minty scent! It's calming to me, and even more calming knowing that IT WORKS!!! I'll be honest. The foam does make my hair feel a little sticky when I put too much on. But it also makes my hair feel much fuller than usual and gives it great body! Before I purchased the product, I saw reviews with pictures of people with their face blotched red. The back of the foam bottle does say it's got a chemical that can cause temporary redness, but I haven't had any trouble with that. (But then again, I don't typically rub the foam on my face since it's supposed to be a scalp thing.) Also at this point, while I do see a little hair growth, I don't know if that's normal hair growth or growth due to Nioxin. It definitely doesn't feel too much thicker (without the foam), but I've heard your hair only grows 1/2 inch a month, so it will take some time. I thank God and Nioxin that I now feel like I have more of a chance to see myself with full, flowing locks again someday soon!

### ⭐⭐⭐⭐ Two out of three product work
*by A***R on December 29, 2025*

Changed to Nioxin because I had used the product years ago when I was dealing with stress related hair loss and had success and needed to change from what I was using. The product I was using worked to a point but I did not like that the product never felt like it rinsed completely out. I like the shampoo a lot, it cleans my scalp and rinses out completely. I am not a fan of the conditioner, leaves my hair feeling limp and my scalp gets greasy faster even with a small amount. I am still figuring out how to use the treatment product, no clear directions as to how much or if need to use on wet or damp hair. I will say that my hair is in better condition and notice less hair loss and shedding since I started using the product. Will definitely continue using the shampoo and the treatment but I do not recommend the conditioner.

## Frequently Bought Together

- Nioxin Scalp + Hair Thickening System Kits | For Natural, Colored, & Damaged Hair with Light to Progressed Thinning | Strengthen & Boost Hair Density with Niacinamide & Biotin | 1 Month Supply
- Nioxin Hair Fall Defense Intensive Daily Leave-In Hair Treatment | With Niacinamide, Caffeine, Lauric Acid, and Sandalore | For Thicker, Stronger Hair | 2.3 Fl Oz.
- Nioxin Density Defend Styling Root Lifting Spray | Hair Thickening Spray | Texturizes and Volumizes | 5.1 Fl oz.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-20*