Nioxin 1 vs 2 – What’s the difference?

If you’re looking at using Nioxin for the first time, then the likelihood is that you’ve seen the different types of Nioxin that there are. But what does Nioxin 1 vs 2 vs 6 even mean? Is Nioxin System 1 better than Nioxin System 2, or is there little to no difference between the two?

Well, essentially the difference between these numbers is just the type of hair that you’re going to be applying it to. For example, Nioxin 1 is for normal-to-thin fine hair, whilst Nioxin 2 is for considerably fine hair. It’s just a scale to differentiate between how damaged your hair really is.

So with that said, how many different levels are there? You might know already – Nioxin runs from 1 through to 6, meaning that there are a wide range of different products which may help to improve the health of your hair in the long term.

These different levels of Nioxin are designed for different types of hair, so it’s important to know which types of Nioxin will work best for you. Let’s have a quick look at the different types of Nioxin and how they’ll effect your hair.


Nioxin 1

Nioxin 1 is made to help the texture of your hair thicker and more luxurious. It’s ideal if you have thinning hair, which isn’t necessarily damaged already. You can also look to use Nioxin 1 if you’re just tarting to experience slight hair loss and you want to get in early and mitigate any future loss that you might experience.

Nioxin System 1 Cleanser Shampoo, Peppermint Oil, 16.9 oz.
  • Removes product build-up, minerals, pollutants and toxins
  • For fine, thin, non-chemically treated hair
  • Nioxin is formulated for the scalp but still provides cleansing and moisturizing for the hair

Nioxin 2

Whilst Nioxin 2 is extremely similar to Nioxin 1, they are designed for different types of hair. Whilst Nioxin 1 is for thinning hair, Nioxin 2 is made for people with even thinner hair. In fact on the website, it’s defined as “noticeably” thinning hair, so make of that what you will.

Nioxin System 2 Cleanser, 300 Ml
  • System 2 Cleanser BioAMP adds thickness and strengthens the hair shaft
  • Bionutrients and Activ-Renewal help provide a more youthful-looking scalp complexion.
  • Helps to remove follicle-clogging sebum, fatty acids and inviromental residues from the scalp skin and hair

Nioxin 3

Now, Nioxin 3 is a little different than the first two for one main reason; it’s specifically designed for those that have damaged their hair through overuse of other chemicals. The main example of this is those that have dyed their hair again and again (no judgements!) and have now started to see their thinning somewhat. If this is you, then you should probably consider opting for Nioxin 3.

Nioxin Cleanser, System 3 (Fine/Treated/Normal to Thin-Looking), 33.8 Ounce
  • Nioxin Cleanser for Fine Hair System 3, Fine, Chemically Enhanced Hair | Early Stages of Thinning
  • 33.8 oz (1 Liter)
  • Nioxin

Nioxin 4

Like Nioxin 3, Nioxin 4 is also designed for chemically treated hair. Remember that chemically treated hair doesn’t necessarily mean hair that is dyed – even going to your salon regularly, you may consider yourself in this group depending on the types of products that your beauty specialist uses.

Nioxin System 4 Cleanser Shampoo, 10.1 oz.
  • Provides nourishing vitamins, proteins and amino acids
  • Gently removes residue and DHT from the scalp and hair
  • A daily volumizing cleanser

Nioxin 5

I know, I know – it’s getting confusing. But stick with me, we’re almost done looking at the different types of Nioxin.

Nioxin 5 is specifically made for those who are somewhere in between thinning hair and those that have extremely coarse hair. It’s a sort of middle of the road option for those that aren’t dealing with significantly thinner hair than what they may have started with.

Nioxin 6

Nioxin 6 is ideal for those with coarse hair. What do I mean by this? Well, coarse hair usually refers to those with hair that is a specific type (check here for a cool article explaining it). It’s important to remember that coarse hair doesn’t necessarily mean thick and curly, which is probably the most common misconception that people make when defining “coarse” hair.

How do I know which one I need?

If you really are struggling to know which type of Nioxin that you need, remember that you can always ask your hair stylist or barber! They are likely to have a better idea of whether you have ‘noticeably’ thin hair or just slightly thin hair, though it should not be too difficult to see the difference yourself.

Remember that if you’re only experiencing thinner hair, then you should look at something like Nioxin. If you have male pattern baldness, then you’ll want to look at another method like Rogaine.


Overall, it’s pretty important to get the right Nioxin for you, but it really isn’t that difficult to do. Nioxin can be a great option if you’re looking to mitigate hair loss at the very beginning, but from people I’ve spoken to personally, it isn’t the most effective hair loss solution out there.

Leave a Comment