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💥 Unlock your hair’s full potential—thicker, stronger, unstoppable!
Nioxin Diamax Advanced is a premium 3.38 oz serum designed for thin hair, featuring HTX technology with caffeine, panthenol, and niacinamide. It visibly thickens hair for up to 8 hours and protects roots and ends from damage, promoting longer, healthier hair with daily use. Ideal for professional salon and spa use, this lightweight, unscented formula delivers salon-quality results trusted by thousands.





































| ASIN | B086G3LFD1 |
| Best Sellers Rank | #100,613 in Beauty ( See Top 100 in Beauty ) #906 in Hair Regrowth Treatments |
| Brand | NIOXIN |
| Brand Name | NIOXIN |
| Customer Reviews | 4.4 out of 5 stars 1,019 Reviews |
| Hair Type | Thin |
| Hair type | Thin |
| Item Form | Serum |
| Item Volume | 0.34 Fluid Ounces |
| Item Weight | 3.4 Ounces |
| Item form | Serum |
| Item weight | 3.4 Ounces |
| Manufacturer | Nioxin |
| Manufacturer Part Number | 3614228816113 |
| Model Number | 3614228816113 |
| Number of Items | 1 |
| Recommended Uses For Product | Professional Salon & Spa |
| Recommended uses for product | Professional Salon & Spa |
| Scent | Unscented |
| Scent Name | Unscented |
| Unit Count | 3.38 Ounce |
A**R
This works!!! Worth every penny!
My hair is thinning badly due to low iron and a 100lb glp-1 weight loss. It has been a very depressing time. My hairdresser said a lot of her clients were having luck with this - and WOW! It’s amazing. My hair feels healthier and is definitely thicker, enabling me to style it to cover the thin or bald areas. Combined with a Nutrafal regimen, I have had real growth and am finally feeling better about myself. Give it a try if you suffer with hair loss like me!
M**A
Nioxin Hair Thickening Serum
I really like this serum that makes my hair look and feel thicker. The instruction says to use it on wet hair. I don’t. I use it on my freshly shampooed hair. I work the serum into my hair using my scrubby brush. I comb my hair and use my hot air brush to style my thick feeling hair.
J**.
Great value
If you already love this product, buying it this way is a great value. Having it delivered right to your door is incredibly convenient. I’ve noticed that it seems to support healthier hair overall — helping with breakage and making my hair feel stronger. It also appears to promote better growth by supporting the hair at the root. Overall, a convenient and cost-effective way to keep this staple on hand.
B**.
This works
It's a great product. I find it really works. It's unscented. My hair is thicker. I would definitely buy this again. Update...it's full of caffeine which I am allergic to. Made me very ill. Buyer beware. There should be a warning ⚠️ on the label!!!
D**H
Works, but
Does help with making hair look fuller and thicker. But does dry my hair out. I’ve stopped using it because I don’t think the chemicals are doing my hair any good.
Trustpilot
3 days ago
2 weeks ago