Nioxin System 4 Hair Treatment - 3.3 fl oz

[This review was collected as part of a promotion.] My hair after using it for a month seemed thicker and more full. Not sure if it helped the grey hair or not. But it feels different. Having the three products I think has made a difference.

[This review was collected as part of a promotion.] I now love using these products, they was given to me as part of a review package and I have to say I'm impressed with the serum that I never used before

[This review was collected as part of a promotion.] I have been using the Nioxin System 2 Hair Loss Serum for Natural Hair with Progressed Thinning for around 6 weeks now, I use it 3 or 4 times a week after washing and conditioning my hair, I feel there is definitely a lot of improvement in my hair as it feels a lot thicker and I'm not noticing many bald spots anymore. The serum is a leave-in formula that is a lightweight foam mousse, it nourishes the hair and scalp. You just give the bottle a good shake, pump some out, the amount would depend on the amount of hair that you have, then massage the serum onto your head, there's no need to rinse it off. It doesn't feel sticky or greasy and leaves my hair feeling thicker and smoother. The bottle, with a pump top, is a good size, the serum lasts a long time as you don't need to use a lot for it to be effective.

[This review was collected as part of a promotion.] After a few uses, my hair felt thicker in areas that had thinned out. The lightweight foam absorbs easily and adds volume without residue. Easy to apply but be careful if you have eczema or scalp sensitivity.

[This review was collected as part of a promotion.] Product left my hair dry and brittle with no visible new growth. Disappointed and wouldn’t recommend for thinning hair. I wouldn't purchase this product

[This review was collected as part of a promotion.] The serum is easy to use & work through my hair, and I love how quickly it absorbs. The scent is nice to use. Product so far has been pretty effective look forward to using it for a longer period of time. Was not one to use serums have just stuck to shampoo & conditioners but would definitely recommend this product

[This review was collected as part of a promotion.] Applying the leave-in treatment directly to the scalp is a breeze because to its frothy nature. It gives my hair a slight boost of fullness at the roots without making it oily. My hair already has more body, and my scalp feels healthier. All things considered, I'm having a great time with this method and intend to continue using it to observe the longer-term effects. I heartily recommend it if you're struggling with hair loss and want a product that promotes a healthy scalp.

[This review was collected as part of a promotion.] I’ve been using the Nioxin Hair Thinning Serum as part of my daily routine, and I really like how light it feels on my scalp. The fresh, tingling sensation makes me feel like it’s doing something straight away, and it doesn’t leave any greasy residue. After a few weeks, my hair feels a bit stronger at the roots, and I’ve noticed less breakage when brushing. It’s a slow, patient process, but it’s become a simple step I look forward to because my scalp feels healthier and more refreshed overall.

[This review was collected as part of a promotion.] Wow. I was suprised that this stuff actually works… I was given this Nioxin hair loss serum along with the shampoo and conditioner set. This has quite a powerful minty smell to it but it does do exactly what it claims to. My hair was thinning due to prescription medication I take and since using this my hair feels a lot thicker and has more power to it. I highly recommend this

[This review was collected as part of a promotion.] This leave in treatment is easy to use with its pump bottle and feels really light on my scalp. It absorbs quickly and doesn’t leave any sticky or greasy residue. It delivers nutrients directly to my hair and scalp, and since I started using it, my scalp feels more nourished and my hair feels healthier.

[This review was collected as part of a promotion.] This was a well made serum that absorbed really well with a creamy texture. Used for several weeks but sadly not noticed a difference in my hair but will continue to use to use

[This review was collected as part of a promotion.] Fantastic new routine to my hair. My hair had been noticeably thinning amd my pony looking very thin, and I needed something to help with volume. I started using Nioxin System 2 kit. I have been using the kit 3 times a week and noticed the difference, my hair looks much healthy already and feels full. The shampoo has a lovely minty smell and feel, very refreshing to the scalp and feels much cleaner. The conditioner is a very good moisturier to hair and the scalp too. It's nice and lightweight, very good finishing ,no hair residue left, lightweight but still moisturizes well. I have definitely felt less hair breakage breakage reduced hair fall since using these.The niacinamide and biotin rich stuff in these are definitely doing their job. Definitely going to purchase again. Highly recommend for thinning hair very happy with purchase and results. Love the packaging too.

[This review was collected as part of a promotion.] This serum is perfect as a leave-in conditioner after a hair wash. To add to this, the product applies well and smells wonderful too. Would recommend.

[This review was collected as part of a promotion.] This hair treatment has been a brilliant product to add to my hair regime. I have been using it alongside the shampoo and conditioner from the Nioxin line. I’ve really enjoying seeing the improvements this regime has made to my damaged hair, the treatment feels like a lightweight serum, but really leaves my hair feeling moisturised and nourished

[This review was collected as part of a promotion.] Really not good, I tried this for 30 days and it didn’t do anything unfortunately, I had such high hopes! On the plus side the scent was very pleasant!

[This review was collected as part of a promotion.] I’ve been using the Nioxin System 2 Hair Thickening regime for over a month now. I have followed the instructions but unfortunately I haven’t noticed any improvement in my hair thickness, volume nor hair growth. I’ve started experiencing more itchiness in random parts of my scalp, which wasn’t an issue before. The serum has a refreshing smell (same as the whole regime), I have really enjoyed using it as it was very straightforward and I could use it after shampoo and conditioner, or on its own on dry hair. Sadly it hasn’t delivered the promised results - after over a month my hair falls out the same as before and my hair thickness didn't improve

[This review was collected as part of a promotion.] I’ve been using the full 3-step Nioxin System 2 for over a month now, and I can honestly say I see a real difference. My hair used to be thin and fragile, but it now looks noticeably fuller and stronger. After about 3 weeks, I started seeing less hair fall during washing, and by the end of the month my hair felt thicker, healthier, and had more lift at the roots. The serum has a lightweight texture that absorbs quickly without making the hair greasy. The shampoo and conditioner leave my scalp feeling clean and refreshed with a nice cooling sensation. I used the complete system 3–4 times a week as recommended. Overall, Nioxin System 2 really works when used consistently. My hair feels stronger, looks fuller, and breaks far less than before. I’ll definitely continue using it!

[This review was collected as part of a promotion.] The huge bottles are absolute value for money, since using the product my hair has felt thicker and stronger only using twice a week. It does smell quite medicinal but does do what it says on the bottle. 100% feels like my hair is getting thicker by using.

[This review was collected as part of a promotion.] I've been using this hair treatment for the past 30 days, and it's become a staple in my routine. The bottles are huge so will last quite a few washes! From the moment I first applied it, the lovely aroma hit me. What really sets it apart, though, is how it leaves my scalp feeling cool and invigorated. After only one week a friend mentioned how my hair looked darker, so it really does help to thicken my thinning hair. I suffer with scalp dandruff and sebum build up and this product has truly helped to clean up my scalp making a cleaner environment to promote hair growth. I would recommend this product to anyone looking for a treatment for fuller, thicker, and healthier hair 10/10.

[This review was collected as part of a promotion.] I sampled the whole 3 product package for 1 month. The results after using 3x a week, were not great. Maybe a slight thickness. At first the scalp was stinging. Then it felt cold. Then after the first week I got used to the sensation. Overall I would not recommend this product. I don't feel like it made much of a difference.