SKIP TO MAINSKIP TO FOOTER

Member exclusive! Free standard shipping.

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

Tab through the images or use the previous or next buttons to navigate each product image

Nioxin Diamax Advanced Hair Thickening Serum

$55.00

Replenish & Save

Size:3.3 oz

Pickup and delivery options

In stock and ready to ship

Usually ships out in 1-2 days

Save 5% and get free shipping on each subscription order. Cancel anytime!

Free shipping on all orders for members. Must be signed in.

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
Nioxin

Hair Fall Defense Serum

$50.00
Nioxin

Night Density Rescue Serum

$50.00

We think you'll like

12 items

Similar items for you

12 items

Sponsored products

12 items

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

Review Snapshot

by PowerReviews

403 ReviewsWrite a Review
90%
of respondents would recommend this to a friend
Ratings Distribution
Pros
45Easy To Use
41Effective
18Lightweight
12Gentle
8Smells Great
Cons
7Pricey / Poor Value
2None
1I haven't noticed any yet.
1None!
1-Can make your hair feel dry
My Beauty Routine Takes
1930 Minutes
910 Minutes
31+ Hour
Best Uses
18Daily Use
16Women
13Hair Loss
8Color-treated Hair
8Limpness/Lifelessness
Describe Yourself
19Brand Buyer
12Beauty Conscious
9Budget Shopper
4Survivalist / Minimalist
2Product Junkie
Hair Type
17Straight Hair
5Very Curly Hair
3Wavy Hair
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...

403 results

Beautiful product

Submitted 10 months ago

By sparklysheepy

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

Seriously instantly boosts hair making it look thicker instantly. You can use it on wet or dry hair. Will have to keep using to see long-term results.

Was this review helpful to you?
Smooth glossy hair

Submitted 10 months ago

By akc11

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

I have tried nioxin's diamax advanced hair thickening serum. The consistency is on the thicker side and gives the hair a smooth glossy appearance. The pump packaging is nice and easy to use!

Was this review helpful to you?
A miracle

Submitted 10 months ago

By Chris

From New Mexico

It helped me during my postpartum hair loss period. I noticed my hair wasnt falling out as much anymore. I highly recommend if your losing hair by the handful.

Was this review helpful to you?
Thumbs up!

Submitted 10 months ago

By laceywbbf1

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

This was easy to use, with great packaging. I have started to notice a lot of new baby hairs lately which is great because I have finer hair. You get plenty of product, which has lasted for quite some time.

Was this review helpful to you?
Works great! Smells fantastic!

Submitted 10 months ago

By raquelt57

From undisclosed

Verified Reviewer

Submitted as part of a sweepstakes entry

Reviewed at

Nioxin EMEA - BV

I'm a huge fan of Nioxin and was so excited to try this! First off, it smells fantastic and doesn't leave your hair feeling weighed down or greasy. This packaging made it super easy to dispense and apply. I can for sure tell a difference in the thickness and overall health of my hair since starting on this treatment. I would absolutely buy this product again!

Was this review helpful to you?