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.

Frequently bought together

3 items

Current Product

Nioxin

Diamax Advanced Hair Thickening Serum

$55.00

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

Good option

Submitted 2 years ago

By angelicam205

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

Interesting formula. Havent used it much but it provided me some sort of volume on my hair. Convenient packaging. Provides Texture you to your hair

Was this review helpful to you?
Hair feels thicker

Submitted 2 years ago

By sashsashsasha

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

The hair thickening serum has a strong scent. When using the product, there is a cold and light tingling feeling. Due to that it makes me feel like it is doing something and my hair does feel thicker. I'm curious whether this will thicken it more over time or if it is just when the product is on your hair.

Was this review helpful to you?
Great product

Submitted 2 years ago

By yonashg

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

This product was great on my hair since my hair is dry and curly has boost my hair looking fuller thicker and has made a tremendous change in my hair

Was this review helpful to you?
Truely does thicken hair!

Submitted 2 years ago

By griffinl4

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

This product is a revelation! I've had thinning hair for a while now, so getting this product has been extraordinarily helpful in maintaining my desired look. My partner and I have noticed that, when following instructions and using everyday, the results come through just as promised. It's easy to use, has a great smell, comes in a compact container, and does not leave my hair slimy! Highly recommend for anyone looking for a hair thickening treatment!

Was this review helpful to you?
Thickness and volume

Submitted 2 years ago

By natashab101

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

This work instantly. My hair is long and it's thinner in the front. After I was my hair and towel dry, I apply a few spray to the roots and rub it in, leave for less than 5 minutes, I start to feel and see the Thickness and volume in my roots of my hair, definitely amazed how fast and effective this product work. Highly recommended. Watch the video and you will see for yourself! I will definitely try their shampoo and conditioner out.

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