Nexxus Intense Bonding Treatment leave-in repair serum, 5 oz — Amino & Keratin protein for stronger, damage-resistant hair

Nexxus Intense Bonding Treatment is a leave-in repair serum that rebuilds broken hair bonds using a ProteinFusion blend of amino acids and keratin to strengthen and reduce damage in minutes.

Built for hair that has been weakened by styling, chemical services, heat, or everyday wear, this treatment is part of the Nexxus Amino Bond system. It uses a patented bond-building technology to penetrate the hair fiber and reconstruct internal bonds, restoring moisture, resilience, shine, and elasticity. Designed for all hair types, the formula layers after the AminoBond shampoo and conditioner to seal in protection and leave hair visibly stronger and more resistant to future damage.

How does the Intense Bonding Treatment rebuild damaged hair so quickly?

The treatment contains a concentrated ProteinFusion blend—five essential amino acids plus keratin—that works at the hair’s core to reconnect broken bonds. Its bond-building technology targets multiple damage points to rebuild, generate new bonds, and improve structural integrity within minutes.

• Penetrates the cortex to repair internal bond breaks.
• Replenishes five amino acids that fuel keratin structure.
• Activates in about 3 minutes for fast visible improvement.

What results can I expect after using this leave-in treatment?

After using the Intense Bonding Treatment as directed, hair typically feels stronger, looks smoother, and shows fewer signs of breakage. The formula helps lock in moisture and boost elasticity, creating hair that is easier to style and more resilient to daily stresses.

• Stronger strands with reduced breakage and split ends.
• Improved shine and smoother surface texture.
• Enhanced elasticity for less snapping during styling.

How do I use this treatment within the AminoBond routine?

For best results, start with the Amino Bond shampoo and conditioner to cleanse and condition the hair. Apply the Intense Bonding Treatment to clean, damp hair, distribute evenly through mid-lengths to ends, and leave it in—no rinsing required.

• Use after AminoBond shampoo and conditioner on towel-dried hair.
• Work a small amount through the lengths and ends; avoid the scalp if oily.
• Style as usual—heat styling can be applied but reduce temperature for safer results.

Is this suitable for my hair type and color-treated hair?

The formula was created to work across a wide range of hair types and textures, including color-treated and chemically processed hair. Because it rebuilds protein bonds rather than masking damage, it supports longevity of color and chemical services when used as part of the full system.

• Safe for color-treated and chemically processed hair.
• Formulated to benefit fine, medium, and coarse textures.
• Works alongside salon services to extend results.

Who is this for? The Nexxus Intense Bonding Treatment is ideal for anyone with weakened, brittle, or visibly damaged hair who wants a salon-grade, science-driven repair step. If you regularly bleach, color, heat-style, or notice breakage and dullness, this leave-in serum is formulated to reinforce your hair’s internal structure and make everyday styling gentler and more manageable.

Features:

• ProteinFusion blend with five amino acids and keratin protein.
• Patented bond-building technology that repairs multiple types of damage.
• Fast-acting: activates in about 3 minutes and is leave-in for continual protection.
• Works as part of the AminoBond shampoo and conditioner system for full benefits.

Ingredients

Water (Eau), Cetyl Alcohol, Stearamidopropyl Dimethylamine, Dimethicone, Caprylic/Capric Triglyceride, Glutamic Acid, Cysteine HCl, Serine, Glycine, Histidine HCl, Hydrolyzed Keratin, Collagen Amino Acids, Hydrolyzed Elastin, Polyquaternium Crosspolymer-3, Polyquaternium-28, Phenoxyethanol, Mineral Oil (Huile Minérale), Citric Acid, Glycerin, Distearoylethyl Dimonium Chloride, Fragrance (Parfum), Cetearyl Alcohol, Ethylhexyl Hydroxystearate, Acrylamidopropyltrimonium Chloride/Acrylamide Copolymer, Sodium Gluconate, PVM/MA Copolymer, Sorbitan Oleate, Trideceth-6, Sodium Citrate, Iodopropynyl Butylcarbamate, Coumarin, Hexyl Cinnamal, Limonene, Linalool, Bismuth Oxychloride (CI 77163).