Nexxus Intense Bonding Treatment Amino Bond 5 oz — Leave-In Repair with Amino Acids & Keratin for Stronger, Less Breakage

Nexxus Intense Bonding Treatment Amino Bond is a leave-in, salon-grade repairing serum formulated with amino acids and keratin to rebuild broken hair bonds and improve strength and resilience.

This 5 oz intensive rebonding treatment is the finishing step in the Nexxus Amino Bond regimen, engineered to restore and protect strands weakened by chemical, thermal, or mechanical damage. Powered by a concentrated ProteinFusion blend and Nexxus’ bond-building technology, the formula targets the hair fiber’s inner structure to replenish lost amino acids and fortify keratin for visibly smoother, stronger hair after a single application.

How does the Intense Bonding Treatment rebuild damaged hair?

The treatment penetrates the hair shaft to reconnect and reinforce internal bonds. By delivering a mix of five key amino acids plus keratin protein, it helps reconstruct the protein network inside each strand, creating new links where bonds have fractured.

• Deep-penetrating ProteinFusion blend with five essential amino acids
• Keratin protein to reinforce the hair’s structural core
• Bond-building tech that targets internal breaks rather than just surface smoothing
• Visible improvement in strength and reduced breakage after one use

When and how should I apply this leave-in treatment?

Use the Intense Bonding Treatment on freshly washed, towel-dried hair as the final styling step in the Amino Bond system. Apply evenly through damp hair and leave it in—there’s no rinse required—so the formula can continue rebuilding bonds while protecting against daily stress.

• Begin after shampooing and conditioning with Nexxus Amino Bond
• Work a small amount from mid-lengths to ends, avoiding the scalp if desired
• Do not rinse; style as usual for ongoing protection
• Use regularly to maintain restored strength and resilience

What kinds of damage does this formula address?

This treatment is designed to target five common categories of hair damage, including breakage from chemical processing, heat styling stress, and everyday wear. The formula focuses on rebuilding protein links and sealing in moisture to help hair look healthier, with improved elasticity and less visible frizz or split ends.

• Repairs chemical and color-induced weakening
• Reduces breakage from heat styling and mechanical stress
• Improves elasticity to resist snapping and splitting
• Locks in moisture for smoother, shinier strands

Will this work for my hair type and texture?

The Amino Bond system and this intense treatment are formulated to be compatible with a wide range of hair types—from fine to coarse and straight to curly. Because the formula focuses on restoring protein and moisture balance, it helps strengthen fragile strands without weighing hair down when used as directed.

• Safe for chemically treated, color-treated, and natural hair
• Lightweight leave-in texture suitable for fine to thick hair
• Helps curly and textured hair retain elasticity and definition
• Best results when paired with the full Amino Bond shampoo and conditioner

Who this is for: If your hair shows signs of protein loss—such as frequent breakage, limpness after chemical services, rough texture, or decreased elasticity—this Nexxus Intense Bonding Treatment is built to rebuild internal strength and help prevent further damage. It’s ideal for someone who wants a salon-grade, science-backed leave-in that complements a corrective shampoo and conditioner system and supports long-term hair health without heavy residue.

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).