











Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.
🌟 Unlock fuller, thicker hair — because your scalp deserves the VIP treatment!
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.





































| 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 |
S**E
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.
T**T
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 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!
A**R
Two out of three product work
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.
K**S
Excellent product, good value, trial/gift/travel/sampler sizes.
Nioxin was recommended because I have fine, thinning hair. Even when my hair is super short, shampoos, conditioners, detanglers, and hair-thickeners will weigh it down at the roots. Oftentimes, this is still a problem with dry, fragile hair, but with this product, I use it every day, and my hair is weightless and not too brittle. I highly recommend this product for three more reasons: 1. Manageability. 2. Thicker appearance. 3. Tangle-free. The three products included are a mint-based shampoo, a mint-based conditioner, and a lovely thickener that doesn’t weigh my hair down. This is more of a travel or trial set. The sizes are small, but you will find a use for them. I use them when I run out of my larger bottles and do not want to invest in more. This is a great gift sampler, too. You might send these to loved ones to see if they love them as much as you do. They foam up nicely, and you do not need much product to get the maximum effect. This is an excellent value! Enjoy!
G**E
1 month in review
1 month trial, just bought my second bottle. (Review from a 21yr old mom, with post partum hair thinning/loss.) So I’m gonna be really honest with y'all when I say I saw one comment on tictok about this specific product from a middle aged mom and instantly got it. I’m 21, I have a one year old and I’ve noticed that my hair has basically stopped growing after I had him, along with the usual thinning and hair falling out you might expect after having a baby.. I wanted to stop bleaching anyways so I decided to use this along side it and let my natural hair grow out. (Have tried without this soap before for 6 months with maybe a 1/4th in of growth 😭 so I’m not trying to be bias hah) So far, I’ve noticed that my hair has went from frizzy and dry to really nice and soft just with the base soaps, I don’t have to use much personally because my hair is naturally pretty fine as is. I like the nice neutral smell of mint that the whole set has, and I love the feeling of coolness on my scalp after it’s nice lol. As far as hair froth my hair is actually growing again I’m shocked! I don’t have much of a reference on how unbelievably slow it was before but this is not even a month difference and it’s a huge difference for me. Another little thing is that I now have baby hairs all across my hair line that are growing pretty rapidly. Only small con for me is that it does make my forehead all red sometimes, or my scalp but the foaming stuff does say it’s happens and it’s not painful or anything so that’s the only thing! Over all this product has personally done me very well for post partum hair loss and over all hair health I love it. :)
M**K
Looked promising, but skin said no. :(
Last me more than a month and was started to notice less hair shed hence less thinning, and felt great and smelled great. Unfortunately, I developed some sort of skin sensitivity and my scalp started itching pretty bad, and I had to discontinue using it. Not sure if maybe it was a fluke, so I tried again after a month when my skin settled down, and sadly, started itching again. I think it would work well for those with less sensitive skin. Wish I would’ve not done subscribe and save before knowing if it was a keeper. Too late to return the second box that came while I was revisiting use of the first box.
B**R
More lively after 1 use
Ok so I have to do this review bc it works! I've been battling hair thinning and ive tried a lot of products both topically and orally ...this is it...after one wash i saw my hair more lively and vibrant and shiny just after one use...not sure how it will hold up as far as making my hair thicker but I can already tell its making my hair stronger as well lively, so very impressed had to share So I had to come back and add pics bc it works and the pic says it all!! As u can see on the left is before I started using it and the second one is after only two times of using the shampoo and conditioner and I have used the mousse once which is in second pic! I washed my hair the same day these were taken and the left was from valentines day and the right one is from a day ago. As u can see the volume is undeniable!!! And let me also add that i tease my hair for volume purposes which I did one the left but I didnt even have to with this stuff, this is carzy! I have spent so much money on different products and to think I haven't tried this sooner, well im kicking myself in the butt!!
E**G
Leave well enough alone
Zero stars. My hair was exactly where I wanted it to be for the first time in my life. Both in length and thickness. I thought using this product would help keep it there. I assumed I was being proactive to protect what finally grew in and became healthy. During the first wash I noticed excessive shedding. I thought maybe it’s my hormones. By second wash I could visibly see the effects of the excessive shedding both in and out of the shower. I was losing full strands from the root in clumps. I could see my scalp as if there was baldness occurring and I no longer had any baby hairs to brush down on sides of my head. That was a huge tell for me as I have to brush them down daily and enjoy doing so. Someone else even noticed and told me I should use something to regrow my hair along hairline for where they could see it had thinned out (not knowing that just two weeks prior I didn’t have this issue-this was result of the product). I have since read many comments on multiple forums stating this product causes shedding to “cleanse scalp” or “create a healthy environment for hair growth.” If you have hair on your scalp and want to keep it there, I DO NOT recommend this product. If you are patchy and the risks of losing hair to then wait to grow it back all over again seems worth it to you, choose wisely. I can’t believe I now have to wait for my hair to grow back all over again. It’s truly disheartening for me as this has been YEARS long journey to finally feel confident with health of my hair just to be worse off than I ever was when it felt to be at its worst. I have never experienced this amount of shedding and loss, not even when the dermatologist was startled at the pictures I showed her of shedding on wash days. This product caused much worse. Even after only using it twice, the shedding continued to the point I was worried to wash it and lose more when hair was wet since shedding continued when hair was dry. It also has dried out my hair completely to the point that it sounds crunchy. My curly hair was finally long and healthy for the first time ever, and now I’m starting from scratch due to this product. I will never use this product again nor will I ever recommend it to anyone.
V**S
bien
compre el kit, refresca muy rico, deja suave el cabello, solo que si se gasta algo rápido no dura los 30 días, no mi cabello se sentía ligero y sin enredar.
G**A
Muy buena calidad.
Se nota un cabello mas grueso. La presentacion es pequeña, pero no necesitas mucho para limpiar bien el cabello. No hace que te salga mas cabello, pero ayuda a fortalecer el que tienes y darle mas cuerpo.
B**L
got exactly as advertised and dispatched promptly
all good
M**R
Ça fonctionne vraiment.
J' aime beaucoup la sensation de propreté et mes cheveux sont soyeux. Je ne voyais pas vraiment la différence sur la perte de cheveux jusqu'à ce que je compare deux photos. Le seul point moins intéressant est que durant quelques minutes après la douche j'ai des rougeurs et parfois des démangeaisons au front et aux tempes. Par contre ça s'atténue rapidement. Je l'utilise 3 fois par semaine. Il y a 2 mois et demi entre les deux photos.
G**.
Funciona!
Funciona! No vi mejora en el crecimiento, pero definitivamente mejoró mi nivel de caída. Además, pese a su tamaño, rinden bastante.
Trustpilot
3 weeks ago
5 days ago