Nioxin System 4 Shampoo Cleanser - 10.1 fl oz: For All Hair Types, Hair Regrowth, Liquid Formula
$23.49 ($2.33/fluid ounce)See 1 deal for this item
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Guests are saying
The Nioxin System 4 shampoo has garnered positive feedback for its effectiveness in cleansing and revitalizing hair, particularly for those with thinning or color-treated hair. Guests appreciate its ability to extend the time between washes, leaving hair feeling clean, fuller, and healthier. The refreshing minty scent and large bottle size are also highlighted as significant advantages. While some guests noted concerns about the scent and dryness, many found it to be a valuable addition to their hair care routine.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.4 out of 5 stars with 175 reviews
effectiveness: 3.33 out of 5
quality: 3.33 out of 5
value: 3.33 out of 5
66% would recommend
3 recommendations
5 out of 5 stars
6 October, 2025
originally posted on influenster.com
Absolutely incredible
[This review was collected as part of a promotion.] Wow what can I say - this shampoo from nioxin has been an incredible addition to my hair care regime. I have thick & dry/damaged hair. This cleanses my hair so effectively, without being drying. Since using this product, it has an enabled me to extend the time between hair washes. Typically I’d wash my hair every 3 days, but with using this shampoo I can go 4/5 days without washing. I can truly say this is a brilliant product
4 out of 5 stars
Thumbs up graphic, would recommend
21 September, 2025Verified purchase
Worth the Wait
After seeing the results on someone else I thought I’d give it a try. Results are not seen tonight, but they do appear. I’ve seen baby hair growth at the hairline. The only negative is it doesn’t have a “salon” smell to it .
5 out of 5 stars
20 August, 2025
originally posted on influenster.com
Great system
[This review was collected as part of a promotion.] I started using the Nioxin System 4 bundle for my coloured, thinning hair and noticed a difference within weeks. The shampoo cleans gently without stripping colour, the conditioner leaves my scalp refreshed, and the serum adds a healthy fullness. My hair feels stronger, looks thicker, and has a lovely shine. It’s a salon-quality solution that really delivers on its promise to improve scalp health and encourage thicker-looking hair. Great smell. Big bottles to last too. Great scent and great size for the price.
5 out of 5 stars
18 August, 2025
originally posted on influenster.com
Impressed!
[This review was collected as part of a promotion.] I am amazed by this product. The bottle is huge and definitely lives up to its promises. It has a peppermint smell, which makes your hair and scalp feel clarified and refreshed. The shampoo does not dry out your hair like a lot of others out there and combined with the other two products from the range, I have noticed a difference in how my hair looks and feels, and it is 100% fuller and stronger.
3 out of 5 stars
16 August, 2025
originally posted on influenster.com
Drying
[This review was collected as part of a promotion.] It has a very herbal scent which can be quite overpowering but I do find it very dry on the scalp. Its quite hard to wash thoroughly and I dont find it very nourishing. I cant say I have seen any hair growth or any prevention sadly. And it is very expensive
5 out of 5 stars
13 August, 2025
originally posted on influenster.com
Game changer
[This review was collected as part of a promotion.] I’ve been using the Nioxin System 4 Hair Thickening Shampoo and I’m so impressed with the results. Just like the conditioner, a little goes a long way — even with my long, constantly bleached hair, I barely need any to get a rich, refreshing lather. It smells like mint, which makes every wash feel like a spa moment for my scalp. I have blue hair, and this shampoo doesn’t strip the colour at all, which is a huge win. My hair feels healthier and cleaner, and I’ve noticed it stays less greasy between washes. It’s also really helped with breakage — my bleached strands feel stronger and more protected after every use. It’s definitely worth the money. I’ve been using it regularly and still haven’t even used up a quarter of the bottle. For me, this has become a must-have in my hair care routine.
5 out of 5 stars
30 July, 2025
originally posted on influenster.com
Hair feels fresh and revitalised
[This review was collected as part of a promotion.] First time hearing about this brand but now i know about them i will be continuing to use them, Even after a short period of using it i can already feel the difference in my hairs fullness and scalp health, The shampoo and conditioner has a fresh minty smell, The conditioner left my scalp feeling fresh and tingly almost like your mouth after a extra strength mint, Comes in a huge 1 litre bottle so last for long time and you only need to use a small amount as it really lathers up, The packaging is plain yet very informative with lots of ingredients listed… Expensive but it does the job so well worth the money!
5 out of 5 stars
25 July, 2025
originally posted on influenster.com
Recommend
[This review was collected as part of a promotion.] I’ve been using the whole kit for over a month, 2–3 times a week as recommended. The shampoo has a cooling sensation and deeply cleanses the hair. It helps open the hair cuticle for the next step. Using the entire kit has made a noticeable difference—my hair feels thicker.
5 out of 5 stars
21 July, 2025
originally posted on influenster.com
Value for money strong hair
[This review was collected as part of a promotion.] Nioxin System 4 kit for about three weeks now and my hair feels stronger, softer, and noticeably fuller. The shampoo and conditioner leave my scalp feeling refreshed without dryness, and the treatment is lightweight but effective. My colored, damaged hair already looks healthier, and I’m excited to keep using it. Definitely worth it for anyone struggling with thinning hair!
1 out of 5 stars
19 July, 2025
originally posted on influenster.com
Potent.
[This review was collected as part of a promotion.] I didn't like this set. I didn't like the smell. how heavy the packaging was. It wasn't effective as it left my hair greasy. Not great value for money to me but would be for the right person.
5 out of 5 stars
14 July, 2025
originally posted on influenster.com
Good product huge size
[This review was collected as part of a promotion.] I usually find when washing my hair I over use the shampoo and conditioner products and leave my hair with a greasy shine although freshly washed. This product did not do this to me in fact I got away with an extra day without washing.
1 out of 5 stars
13 July, 2025
originally posted on influenster.com
Didn't like the scent
[This review was collected as part of a promotion.] I didn't like the scent of this product it was really minty where as I prefer a fruity smell. I cant say how the effectiveness is as I didn't use it due to the scent.
5 out of 5 stars
13 July, 2025
originally posted on influenster.com
professional quality
[This review was collected as part of a promotion.] brilliant product, and you can tell that it is professional rather than from the high street. Definitely helps with hair growth and smells amazing
5 out of 5 stars
13 July, 2025
originally posted on influenster.com
Hair feels stronger with noticeably less loss of h
[This review was collected as part of a promotion.] I have been using this shampoo for over a month now. Only requires a small amount and lathers well which is something I really like given the price tag. Smell is a little different almost medical but in a sweet way. In the first couple of weeks using it I did not notice any difference but week 3 was a game changer and I can honestly say my hair now feels stronger with noticeably less loss of hair in the shower.
5 out of 5 stars
12 July, 2025
originally posted on influenster.com
Truly good product.
[This review was collected as part of a promotion.] I was very skeptical about this product; honestly, I don't know why. Maybe because I have a sensitive scalp, prone to dandruff, and not many shampoos are suitable for me. I have been using this product for over a month, every other day, with no issues whatsoever! It cleans nicely and effectively and leaves my scalp hydrated, and I haven't had dandruff or itchiness even once. I like the ingredients used in this shampoo that help hair growth and maintain a healthy scalp. I have a 1L bottle, and I haven't even used 1/3 of the bottle; it will last me at least until Christmas. It leaves my scalp feeling nice and cool due to the peppermint oil used in it.
5 out of 5 stars
9 July, 2025
originally posted on influenster.com
Great shampoo
[This review was collected as part of a promotion.] I have been on the hunt for a new shampoo that actually leaves my hair clean and helps my hair go longer between washes and this is it! It cleanses my hair so well, leaves it feeling soft but not heavy and I’ve noticed my hair starting to feel much fuller.
3 out of 5 stars
8 July, 2025
originally posted on influenster.com
Doesn’t clean my hair
[This review was collected as part of a promotion.] This product is ok! The scent is nice and strong, however is quite uncomfortable when I use it! I have thick curly hair and it just doesn’t seem to help my curls! The shampoo doesn’t feel like it cleans my hair! I usually have a buildup of product from the week and it doesn’t feel clean even after multiple shampoos!
4 out of 5 stars
7 July, 2025
originally posted on influenster.com
Perfect
[This review was collected as part of a promotion.] Just like the conditioner it smells great. It leaves your hair feeling refreshed. Great value for money, makes it feel salon quality each time. The packaging is great again a full litre.
5 out of 5 stars
6 July, 2025
originally posted on influenster.com
Part of a great hair thickening system!
[This review was collected as part of a promotion.] This is an amazing product. Not usually a fan of anything mint smelling for hair or body but this was not overpowering at all. It made my hair feel very clean and very little is needed to produce a good lather and cover my hair. The bottles are sturdy and a great size. I have decanted some into smaller bottles for when I am away as I won’t use anything else on my hair now. I’ve found this whole system has worked better than any other hair thickening treatment I’ve ever tried and my hair feels stronger too.
5 out of 5 stars
6 July, 2025
originally posted on influenster.com
Amazing
[This review was collected as part of a promotion.] Its not very often I come across something that i truly live everything about it. This shampoo is amazing. It has a minty, eucalyptus scent which is not too strong. You only need the smallest amount of shampoo as it lathers very easily. I think that this bottle will easily last me a year so the price is great value as I woyld spend more than this on a years worth of other shampoo. I've noticed that my hair feels healthier, shinier and I have less breakage and fall out. I've never had so many compliments on my hair asking if I've had it done. I am now converted to this brand. Wish id found them sooner.