Beauty in 2 hours or less—order online, pick up in store.

Use the following zoom and pan buttons to control the image that follows them

Nioxin Diamax Advanced Hair Thickening Serum #1
Nioxin Diamax Advanced Hair Thickening Serum #1

 Diamax Advanced Hair Thickening Serum

$55.00

or

Size:3.3 oz

Offers

Pickup and delivery options

In stock and ready to ship

Usually ships in 24 hours

Save 5% on your first subscription order, then 5% on every recurring order. Enjoy free shipping and cancel anytime!

Earn points on this purchase.

Details

Benefits

  • Fuller, Thicker-Looking Hair: Nioxin Intensive Diamax Advanced is a hair thickening treatment that enhances the appearance of fuller, thicker hair.
  • Boosts Hair Diameter: This advanced formula boosts the diameter of each individual hair strand, creating a voluminous and thicker look.
  • Strengthens and Protects: The treatment strengthens and protects the hair, reducing breakage and promoting healthier, more resilient strands.
  • Nourishes and Energizes the Scalp: Diamax Advanced nourishes the scalp, providing essential nutrients and energizing the hair follicles for improved hair growth.
  • Suitable for All Hair Types: Diamax Advanced is suitable for all hair types and can be used daily as part of your hair care routine.

Item 2623051

How To Use

  • Apply a small amount of the serum directly to your scalp.
  • Gently massage the serum into your scalp using circular motions.
  • Do not rinse out.
  • For best results, use daily as part of your hair care routine.

Pre-caution: Do not get into the eyes. Keep out of reach of children. For any questions or concerns about side effects, always consult a medical professional.

Ingredients

Alcohol Denat., Aqua/Water/ Eau, Niacinamide, Peg/Ppg-20/23 Dimethicone, Caffeine, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Parfum/Fragrance, Glycerin, Tetrahydroxypropyl Ethylenediamine, Mentha Arvensis Leaf Oil, Mentha Piperita (Peppermint) Oil, Peg-30 Dipolyhydroxystearate, Benzyl Salicylate, Hexyl Cinnamal, Trideceth-6, Alpha-Isomethyl Ionone, Limonene, Linalool, Citronellol.

Make it a routine

Add these personalized recommendations to complete your beauty routine.

Step 1

Step 2

Step 3

Current Product

Nioxin

Diamax Advanced Hair Thickening Serum

$55.00

Similar items for you

12 items

We think you'll like

12 items

Sponsored products

12 items

Review Snapshot

by PowerReviews

412 ReviewsWrite a Review
89%
of respondents would recommend this to a friend
Ratings Distribution
Pros
Cons
My Beauty Routine Takes
Best For
Describe Yourself
Hair Type
Most Helpful Positive Review
Really Actually Works

I'm in my 50's and my hair is beginning to thin in certain areas. I've always had very thick, but fine, hair so I've never had to deal with thinning hair. This product actually made my hair feel thicker from the very beginning in the areas I was concerned about. It made my hair feel denser yet soft ...

Versus
Most Helpful Critical Review
Another hair treatment

My hairdresser recommended this product. Shortly after applying, it does soak in and dry up nicely. I do not like the smell, but I am also sensitive to perfumes in laundry detergents, so I buy the ones that are "fragrance free". I do not like the instructions at all. Every product Nioxin makes, says...

412 results

Great smelling but no noticeable difference

Submitted 2 years ago

By barbw7

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

I love the smell of this product, and was really hoping to see a big difference in my hair. Unfortunately, even after using it for a few weeks, I'm not seeing more noticeable hair growth. It has made my hair a little softer, so that's a win!

Was this review helpful to you?
Nice serum

Submitted 2 years ago

By kaylac711

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

This serum was nice and made my hair feel nice. I'm not sure if I really felt any thickening benefits, but I don't really struggle with thin or thinning hair. So if you do, you might notice more of a difference. Especially if using longer term. The packaging is convenient to use and it has a pleasant scent that's not too strong.

Was this review helpful to you?
Volumizing serum

Submitted 2 years ago

By esther44

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

It's a good hair strengthening serum! I find it doesn't leave my hair or scalp too oily, and I like that there's no strong scent. I use it on and off for a few months and hopefully it is helping with hair retention and volume.

Was this review helpful to you?
You're going to need longer than a month to see any diffe...

Submitted 2 years ago

By aeonlapp

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

Unfortunately, with products like this, it does take longer than 30 days to see any sort of results that usually takes 3 to 6 months to see any sort of remarkable difference in your hair while using this product. I did not see any difference in my hair thickness, hair shedding, or any of the like I know when you use products like this that once you stop using them any new hair growth will fall out, I doubt I would continue using this product after I am done with this bottle

Was this review helpful to you?
Lightweight hair serum

Submitted 2 years ago

By lisaros

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

I have been using the serum for about a month. Since i've been using it, i've noticed a little bit of growth. I don't see a difference in thickness but I have noticed less shedding and hair feels softer. I was happy that the serum wasn't oily. Its a light consistency with a pleasant scent.

Was this review helpful to you?

Q&A

Showing 5 out of 54 Questions
Q
My hair is so thin and I am a diabetic, which is really bad for your hair anyway. My hair has broken off in CHUNKS! It looks horrible and is HUMILIATING! I don't even leave my house anymore!😢. I am using the generic form of Rogaine- for women, can I use this also? Or should I just use one or the other? Brittle and breakage...I mean SERIOUS BREAKAGE is my issue plus my hair is extremely fine/thin so it looks even worse and is more noticeable. It broke off behind/above ears, all around crown and some underneath!! Help! Any other ideas? Or advice? I'm all ears! No pun intended ugggh!
Asked by Annie
Official Answer By Nioxin - Brand Engage
You may use this product along with Rogaine. Yo may want to get your hair tripped to help even things out, give the style a shape, and removing split ends.Was this answer helpful to you
Q
Does this work if I let my hair dry naturally? Also, is this thickening only temporary or does it actually help thicken each strand of hair after long term use?
Asked by Mel
Official Answer By Nioxin - Brand Engage
It works best as a styling aid when blown dry to reach full potential. It does penetrate each hair making it thicker stronger and protecting it against damage. A wonderful 2-in-1 product.Was this answer helpful to you
Q
Can you tell me The differences between this advanced product and the regular one?
Asked by frankie
Official Answer By Nioxin - Brand Engage
The main difference is that the Advanced will provide up to 8 hours of the look and feel of having 11,000 more strands of hair on your head. Was this answer helpful to you
Q
Is this a styling product or a treatment product?
Asked by Frankie
Official Answer By Nioxin - Brand Engage
It is both! It penetrates each hair strand making it thicker fuller and strengthened against breakage, while it gives added volume and definition to hair that is blown dry after application. This is truly a remarkable product.Was this answer helpful to you
Q
I have the 3 piece kit, 3-D root booster, night density rescue & diamax advanced. I only wash my hair every other day. What products can I use day and night on days when I don't wash my hair & in what order should I apply them? Thanks!
Asked by Sally
Official Answer By Nioxin - Brand Engage
The Diamax Advanced should only be used before blow drying and styling your hair. The 3-D Root Booster should be used twice daily. And the night density rescue is to be used at night. In the morning I would recommend applying the Root Booster prior to the Diamax. On days that you shampoo in the morning use all of the system kit products prior to applying the Root Booster and Diamax. In the evening apply the Hair Booster followed by the Night density Rescue. If you are shampooing in the evening apply products in the following order: Shampoo, Conditioner, Root Booster, Scalp & Hair Treatment then the Night Density Rescue. Was this answer helpful to you