Nioxin Review 2024: (must read) Before Buying


Nioxin System Review

When you notice your hair is thinning, you may feel helpless. What stops hair loss and promotes new hair growth? We’ve found several hair regrowth products that work. One of them is the Nioxin System.

We performed a Nioxin review for 30 days to observe the difference in hair density and length. Here are the results.

What is Nioxin?

Nioxin is a hair care brand with several hair treatment systems for men and women. The original Nioxin brand launched its hair care system in the 1980s, and it’s still a popular treatment today for those with thinning hair.

For years, Nioxin has sold itself as a product to assist with hair thinning and hair loss, though it does not directly say it will regrow your hair. Instead, the brand treats issues with dry scalps and damaged, brittle hair.

Nioxin System 2 Review

We reviewed Nioxin System 2 for Progressed Thinning Hair. Our Nioxin System review covers results, ingredients, side effects, and whether it really works for hair loss.

How the Nioxin System Works

From level 1 thinning to level 6, Nioxin offers customers a customizable hair cleansing system based on whether your hair is fine to noticeably thinning or chemically treated. Here’s a breakdown:

What's your Nioxin System Number (chart)
  • System 1 Natural hair with light thinning.
  • System 2 Natural hair with progressed thinning.
  • System 3 For color-treated hair with light thinning.
  • System 4 For color-treated hair with progressed thinning.
  • System 5 For chemically-treated (relaxers/perms) with light thinning.
  • System 6 For chemically treated hair with noticeable patches and thinning.
Nioxin System Chart
Nioxin System Chart.

Nioxin System Review

Nioxin has several different shampoos and conditioners for thinning hair. These go from level 1 for average thinning hair to level 6 for noticeably thinning and selecting based on your color treatment. We suggest starting with level 1 as it may bring back your thickness and shine quickly.

After applying the System 1 shampoo with the scalp and hair treatment, we saw a noticeable difference in the condition of our hair. It was softer and smoother within a few uses and thicker-looking hairs after 1-month.

Nioxin System Results in Just 30 Days

The shampoo does clean your hair and removes environmental residues, oil, and product buildup. If you regularly color or chemically treat your hair, this system should help your hair recover fast.

Nioxin System Results

We liked all the innovative ingredients in the lightweight conditioners, but we were surprised to see sodium laureth sulfate in the shampoo. Sometimes, these products can contain harmful ethylene oxide, but that’s not the case with every product. Nioxin hasn’t been found to be toxic or contain these toxic ingredients.

Nioxin System Results in Just 30 Days

With several ingredients for hair growth and a system that changes the formula to match your hair type, we found that the results matched the guarantee, particularly with Nioxin scalp treatments.

It does work to improve hair thickness, and after a few uses, you should feel the volume of your hair return. However, we recommend that you take the conditioner, apply it from the scalp, and allow it to sit for at least 15 to 20 minutes.

Improved Hair and Scalp Health

Our test used the Nioxin System 2 Cleanser Shampoo, System 2 Conditioner, and Leave-in scalp treatment. These are included with the Nioxin System 2 Hair Kit, which offers a decent value. 

Nioxin asserts that its shampoos reduce the production of dihydrotestosterone (DHT), which is directly linked to male pattern hair loss. Once DHT attaches, the hair follicle slowly dies, producing wispier hair before dying.

The Nioxin System 2 shampoo and conditioner leave your scalp and hair feeling extremely clean and moisturized. After one use, it should alleviate any itching and irritation. Dandruff goes away as well.

All in all, Nioxin’s System 2 kit does work if you want to improve the health of your scalp and hair. While the brand doesn’t outwardly claim to regrow hair, they do claim to treat the underlying causes of hair loss, such as dry skin and itchy scalp.

If you struggle with stubborn dandruff and overproduction of sebum oil on your scalp while seeing your hair thin, these products offer a great alternative to other hair restoration methods and Rogaine products

Side Effects

Before we go any further, there are a few side effects to consider with Nioxin, as noted by some users. These aren’t as common as we thought after checking reviews, so if you are considering this system, we suggest you read the Nioxin Reviews.

In our test, the switch felt great. Some slight itchiness goes away after the first couple of weeks. If it continues to irritate your scalp, you should switch, as that is one of the common side effects, particularly if you are sensitive to sulfates.

Other reported side effects include:

  • Redness
  • Irritation
  • Itchiness
  • Tenderness
  • Dry skin
  • Brittle hair

We didn’t experience these other side effects, and you should always check with your doctor if you may be allergic to the ingredients in Nioxin. It’s always a good idea to do this anyway, especially if you’re trying to treat alopecia.

How to Use

The Nioxin system shampoos and conditioners work well together, improving chances of faster hair growth and density. There’s a simple process to using these products, and it’s not very different from how you regularly shampoo and condition your hair.

  • Wet your hair thoroughly before applying cleanser
  • Lather up with the cleanser and then wait 1 minute
  • Rinse out thoroughly
  • Apply the Scalp Therapy Revitalizing conditioner on the scalp and gently massage through the ends of your hair.
  • Rinse out and apply a leave-in Nioxin product for additional fullness

Innovative Nioxin System Ingredients

Their Nioxin system includes tested and proven technologies to help with hair loss, including:

  • BioAmp: These glycol-proteins aid in hair thickening and strengthening from inside the follicle. Cystine acids work to seal the hair shaft and repair fine, damaged hair.
  • SmoothPlex: This formula is derived from silk amino acids and a special ingredient called kukui nut oil. These ingredients add moisture and shine, which benefits medium to coarse hair. 
  • Transactive Delivery System: Time-released ingredients with vitamins, botanicals, and nutrients that aid in moisture and strengthening your hair follicles throughout the day.
  • Scalp Access: Also called a micronutrient system, this element delivers nutrients directly to your scalp and the root of your hair. 
  • Glyco-Color Shield: This dual-protection technology protects your hair from damage and irritation, specially formulated for those with damaged hair from color treatments, perms, and relaxers. (It still preserves hair color and highlights and nourishes your hair to stay healthy and strong.)

Ingredients for Hair Growth

While silk amino acids and other special ingredients are listed above, the formulas also include some vitamins, minerals, and herbal ingredients to improve your hair’s moisture, blood circulation to follicles, and reduced sebum.

It’s important to note that these ingredients change depending on the system you pick. Here are some ingredients in system level 1’s shampoo and conditioner as part of the Nioxin Shampoo System Level 1 3-in-1 Kit.

  • Stinging nettle
  • Saw palmetto
  • Sodium citrate
  • Peppermint
  • Wild mind
  • Biotin
  • Grapefruit
  • Mentha Areensis leaf oil


There are a variety of advantages to using Nioxin shampoo. You’ll first notice the pleasant scent and cool feeling on your scalp. The peppermint oil extracts work their magic on your scalp and hair follicles.

Since you can use the cleanser as a daily shampoo, the ingredients are made to remove the buildup of oil and products in your hair, cleansing your scalp so you can start the day fresh.

Finally, your hair will become thicker and fuller after a few uses. You should notice if the product is working within 14 days. However, using shampoo and conditioner to massage gently into your scalp is important.

Should I Use Nioxin?

The Nioxin System shampoos and conditioners are meant for those with trouble growing thick and lustrous hair. While it may not treat bald spots, it can help with early hair thinning and restore volume to your hair.

However, we do want to caution that hair loss shampoos contain many ingredients, some of which are chemicals.

These formulas are designed to treat scalp problems that reduce the strength of your hair follicle, which is why you should use them if you have issues with dry scalp or brittle hair from multiple treatments.

Where can i buy nioxin hair products?

Nioxin is readily available on Amazon, Walmart, Target, and CVS.


The Nioxin hair products include innovative ingredients to treat various degrees of hair thinning, even if color treated. Also, many men have seen hair growth after using Nioxin’s System of shampoos, conditioners, and scalp treatments.


Out of all the levels, the Nioxin Cleanser Shampoo System 2 is the most popular, and it comes with different options and a conditioner set. This first shampoo is a scalp cleanser, which can also help with dry skin and dandruff.

Check out all Nioxin Shampoos on Amazon. Approx. $28 for 16.9oz (500ml) and $45 for 33.8oz (1L).


The conditioner offers moisture balance, while the scalp therapy conditioner is a leave-in hair product that restores hair resilience to fungal problems like dandruff.

Check out all Nioxin Conditioners on Amazon. Approx. $33 for 16.9oz (500ml) and $51 for 33.8oz (1L).

Nioxin FAQS

Does Nioxin regrow hair?

Nioxin doesn’t make any claims its system (kits), shampoo, conditioner, or scalp treatment will yield any hair regrowth. Nioxin offers a Minoxidil Hair Regrowth Treatment for Women and Minoxidil Hair Regrowth Treatment for Men to regrow hair. Minoxidil is the only FDA-approved treatment that’s medically proven to regrow hair.

Does Nioxin really work?

The Nioxin System primarily focuses on improving hair and scalp health so hair can grow thicker and stronger. However, Nioxin doesn’t claim that its system, shampoos, conditioners, or scalp treatments will regrow hair. However, many reviewers have cited thicker hair in as little as 30 days of use.

How long does it take for Nioxin to work?

Nioxin results will vary for each individual, but if used as directed, it can provide results in 4-6 weeks from first use. To achieve the best results, Nioxin suggests using their 3-part system daily. Results will come slower for those who don’t wash their hair every day.

How much does Nioxin cost?

Typically, Nioxin Hair Care System Kits cost $45 USD (full size kit) and $29 (trial size kit). Nioxin Shampoos range $28-$33 USD for a 16.9 fl oz (500ml) bottle. Nioxin Conditioners cost $24 USD for a bottle of 10.1 fl oz (300ml). Prices vary depending on where you buy, but because of hair’s color treatment (if any) and product size.

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I'm the founder of Bald & Beards, an amateur barber and I've been obsessed with men's grooming, styles, and trends for over 20 years.