Nexxus Diametress Volume Conditioner for Fine, Flat Hair — 13.5 oz, Lightweight Strengthening & Thickening

Created by Nexxus using lab-driven protein science and botanically inspired extracts, this 13.5 oz conditioner is part of a system designed to add body and resilience to weakened, limp hair. It combines concentrated elastin protein and green tea extract to deliver lightweight nourishment, help fortify strands, and build a protective layer that can increase strand diameter when used as directed with the Diametress regimen.

How does this conditioner build noticeable volume without weighing hair down?

The formula focuses on strengthening the hair fiber and sealing in lightweight moisture so strands appear fuller without heavy residue. Its technology targets fine, flat hair to improve strand diameter and give hair more lift from the roots while keeping movement soft and natural.

• Concentrated Elastin Protein reinforces weakened fibers for thicker-feeling strands
• Green Tea Extract provides antioxidant-rich nourishment without heaviness
• Lightweight conditioning agents smooth cuticles and prevent limpness

What is the recommended way to use Nexxus Diametress for best results?

Use this conditioner as Step 2 in the Diametress volume routine after shampooing with Nexxus Diametress Volume Shampoo. Apply to wet hair, smooth through, and leave on for three minutes to allow active ingredients to penetrate before rinsing thoroughly.

• Step 1: Shampoo with Nexxus Diametress Volume Shampoo and rinse
• Step 2: Apply conditioner, wait three minutes, then rinse completely
• Step 3: Finish with Diametress Leave-In Conditioning Crème or Lavish Body Gel Spray

Which hair concerns will this conditioner address most effectively?

This product is formulated primarily for fine, flat, or weakened hair that needs lift, resilience, and manageability. It helps improve strand thickness and reduces the appearance of limpness while delivering salon-quality conditioning that keeps hair soft and touchable.

• Revitalizes hair that looks flat at the roots
• Strengthens fragile strands prone to breakage
• Improves manageability for easier styling and longer-lasting volume

Can I pair this conditioner with styling products or heat tools?

Yes — after rinsing, follow with a recommended leave-in like the Diametress Conditioning Crème or Lavish Body Gel Spray to add styling support and protection. The lightweight conditioning base provides a smooth foundation for heat styling without adding excessive weight.

• Works with leave-ins to enhance volume and hold
• Compatible with blow-drying and hot tools when using thermal protectant styling products
• Maintains natural movement while supporting styled looks

Who is this for: Nexxus Diametress Volume Conditioner is aimed at anyone with fine, flat, or weakened hair seeking salon-level volume and strand reinforcement without the heaviness of richer conditioners. Ideal for users who want fuller-looking hair that still moves naturally — especially when used as part of the complete Diametress system.

Ingredients

Water (Aqua), Cetearyl Alcohol, Stearamidopropyl Dimethylamine, Hydrolyzed Elastin, Hydrolyzed Keratin, Hydrolyzed Wheat Protein, Camellia Sinensis Leaf Extract, Panthenol, Behentrimonium Chloride, Dimethicone, Fragrance (Parfum), Lactic Acid, Dipropylene Glycol, Trehalose, Potassium Chloride, Gluconolactone, Amodimethicone, DMDM Hydantoin, Disodium EDTA, Adipic Acid, PEG-7 Propylheptyl Ether, Cetrimonium Chloride, Sodium Sulfate, Methylchloroisothiazolinone, Methylisothiazolinone.