This Product |
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Texture |
Serum |
Serum |
Serum |
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Hair Type |
All hair types |
All hair types |
All hair types |
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Benefits |
Thickens hair at the roots and provides hair breakage protection |
Strengthens and thickens hair from the root |
Reduces hair fall & rejuvenates scalp overnight |
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Other benefits |
Boosts hair diameter, strengthens and protects, nourishes and energizes the scalp |
Improves hair density, reduces hair loss, and thickens hair from 1st use |
Increases hair density, anti-aging intensive treatment |
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Reduces hair fall |
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Summary
Unlock the secret to thicker, fuller hair with Nioxin Diamax Advanced Hair Thickening Serum, proven to instantly boost hair diameter and protects hair against breakage, allowing it to grow longer* (with daily use).
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
- 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.
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.
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Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
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 ...
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
So far so good
Verified Reviewer
Submitted as part of a sweepstakes entry
Reviewed at

I'm not sure of the long term if effectiveness of this product but I have been seeing a definite difference in my hair when using, my hair appears to be fuller . I like the scent it's a little different though. I do not like the fact that the product has alcohol denat in it, but that's just me and not a deal breaker if it works.
Does deliever full volume !
Verified Reviewer
Submitted as part of a sweepstakes entry
Reviewed at

Love the packaging makes it so easy to spray in scalp! I also didn't have a crazy scent which I like. It really does leave your hair more full and mine was left supper soft! It is truly worth the money.
Ease of Use and Fingers Crossed on Effectiveness
Verified Reviewer
Submitted as part of a sweepstakes entry
Reviewed at

I have been utilizing this product for two weeks. I have not seen immediate results, but I wasn't expecting it to so early. The product was easy to utilize and the bottle was a good size for handling and dispensing. The scent was neither good nor bad. It did not make my hair look greasy or irritate my scalp. I need to utilize it longer to evaluate whether my hair is thicker. I have had friends speak positively about their results with this product.
Looks thicker after first use just like they claim
Verified Reviewer
Submitted as part of a sweepstakes entry
Reviewed at

This was my first time ever using this brand. I received this product for my honest review. I have been using this serum for 16 days. It has some great ingredients like caffeine to improve circulation. Mentha Arvensis Leaf Oil which also promotes circulation. The scalp is very vascular so improving circulation is a good thing for growing hair. It also has vitamin B3 to nourish your roots. The packaging is simple, but nice, clean looking and easy to open to retrieve your goods. Easy to recycle the box. It has a nice pump on the bottle to apply it directly to your scalp. It's a pretty strong stream like spray to make sure it reaches your scalp. The serum is a clear runny silky feeling fluid that dries to feeling soft and not sticky or stiff at all. It felt refreshing honestly. It's not thick or slimy but it's not water either. I really enjoyed getting into the routine of massaging my scalp for a few minutes each evening. After my hair was dried it had more volume and looked thicker than normal. I noticed less hair falling out each day. I like that this can be used on any hair type so I can share it with my partner. I am excited to see if new baby hairs sprout or if it'll just help my hair grow faster.
Great Product for Hair Thinning
Verified Reviewer
Submitted as part of a sweepstakes entry
Reviewed at

I use this product every day. My hair is thin due to aging and Hypothyroid. I apply it and there is no stickiness, it dries quickly, and my hair has more volume. This product is wonderful. It has thickened my hair. But, it is very expensive. Packed luxuriously and carefully.
Questions
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 EngageYou 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 EngageIt 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 EngageThe 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 EngageIt 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 EngageThe 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