Nexxus Diametress Conditioner 13.5 oz
- 13.5 fl oz bottle
- Green tea extract and elastin protein
- Fine, flat hair, lightweight moisture
- 17% thicker strands with the full regimen, per Nexxus
- Leave on 3 minutes, then rinse
- Paraben, phthalate, mineral oil free
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A lightweight volumizing conditioner that plumps fine, flat hair without weighing it down. The biggest thickening claim depends on using the whole Diametress regimen.
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ASIN: B006TURZ3UCategory: Hair Conditioners
Overview
Bathroom shelves of people with fine, flat hair suit Nexxus Diametress, a light conditioner that thickens each strand while moisturizing. Elastin protein and green tea extract form a protective barrier that adds body without weight.
Body and fullness without the flatness of rich conditioners is the reason to use it on fine hair. The headline strand-thickening figure assumes the matching shampoo and leave-in, so this bottle alone does less.
Who it's for
Fine, limp hair that goes flat under regular conditioners is the target. People with coarse or very dry hair should choose something richer.
Pros and cons
- Light enough for fine hair
- Adds body and fullness
- Elastin protein strengthens
- Free of parabens and phthalates
- Full claim needs the whole regimen
- Light for dry, coarse hair
- Green tea scent may not suit all
Performance notes
Fullness comes from elastin protein coating each strand, slightly increasing its diameter so hair looks thicker. A short leave-on time on wet hair lets it absorb without heavy residue. Rinsing thoroughly preserves root lift.
Specifications
| Brand | Nexxus |
|---|---|
| Dimensions & fit | |
| Item dimensions | 2.6 x 2.6 x 9.4 inches |
| Item Weight | 13.44 ounces |
| Capacity & performance | |
| Liquid Volume | 13.5 fl oz |
| Age Range Description | Adult |
| Construction & materials | |
| Material Type Free | Aluminum, formaldehyde, mineral oil, paraben, phthalate free |
| Material Features | Natural |
| Included components | |
| Package Type Name | Bottle |
| Unit Count | 13.5 Fluid Ounces |
| Other details | |
| Hair Type | Fine, flat |
| Hair Conditioner Type | Standard volumizing conditioner |
| Scent Name | Green tea |
| Product Benefits | Nourishing, smoothing, strengthening, volumizing |
| Special Ingredients | Green tea extract, concentrated elastin protein, keratin |
| Suggested Use | Smooth onto wet hair, wait 3 minutes, rinse |
| Active Ingredients | lactic_acid |
| Additional Features | Moisturizing, Nouri, Strengthens |
| Item Form | Gel |
| Recommended Uses For Product | Volume, for Fine and Flat Hair |
Frequently asked questions
Will Nexxus Diametress conditioner make hair grow thicker?
No growth claim is made. It coats strands to increase their diameter, and Nexxus says up to 17% with the full regimen.
How long do I leave Nexxus Diametress conditioner on?
Smooth and press onto wet hair, wait 3 minutes, then rinse thoroughly.
What should I use with Diametress conditioner?
Nexxus suggests Diametress Volume Shampoo first and Diametress Leave In Conditioning Creme or Lavish Body Gel Spray after.