COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Treatment

COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Treatment

Repair, soften, and smooth damaged hair with the COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Treatment, an intensive bond-care treatment designed to help improve the feel of dry, brittle, color-treated, or heat-stressed hair while leaving it silky, shiny, and more manageable. Its rich cream texture melts into the hair for deep care without feeling overly heavy.

Formulated with PEPTIDE-132™, hydrolyzed vegetable protein, low-molecular collagen, 18 amino acids, biotin, panthenol, niacinamide, and tocopherol, this nourishing treatment helps support stronger, healthier-looking hair from mid-length to ends. PEPTIDE-132™ helps support weakened hair bonds, while hydrolyzed vegetable protein and collagen help improve softness and resilience. A blend of 18 amino acids helps replenish stressed strands, while biotin, panthenol, niacinamide, and tocopherol help support scalp comfort and hair conditioning.

The COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Treatment is a great choice for anyone looking for a K-beauty hair bonding treatment, repair treatment for damaged hair, or a deep conditioning treatment for dry, frizzy hair. It is especially helpful for hair affected by heat styling, coloring, bleaching, tangling, or coarse texture that needs extra softness and shine.

Size: 60ml / 2.02 fl. oz | 120ml / 4.05 fl. oz | 240ml / 8.11 fl. oz

Overview

The COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Treatment is a salon-inspired hair treatment created to help support bond repair, softness, shine, and manageability in one step. Designed for all damage levels, it helps leave hair feeling smoother, silkier, and more nourished after rinsing.

Key benefits

• Helps support bond repair for damaged hair
• Improves the feel of softness, shine, and elasticity
• Helps smooth rough, coarse, or tangled hair
• Formulated with PEPTIDE-132™, hydrolyzed vegetable protein, low-molecular collagen, 18 amino acids, biotin, panthenol, niacinamide, and tocopherol
• Rich, silky cream texture for intensive care
• Great for hair stressed by heat styling, coloring, or bleaching

How to use

After shampooing, gently squeeze excess water from the hair. Apply the treatment from mid-length to ends, then rinse thoroughly with lukewarm water.

Why we love it

If the COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo is where repair begins, the COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Treatment is where it deepens. While the shampoo deposits PEPTIDE-132™ as it cleanses, this treatment gives the patented peptide extended contact time on wet, open-cuticle hair — maximizing the keratin bonding before sealing the strand with a layer of plant-based oils that lock moisture in and protect against further breakage. The rich cream texture feels genuinely indulgent without weighing hair down — it melts in, rinses completely clean, and leaves strands softer and shinier immediately, not over time. COSRX built the same clinical rigor they're known for in skincare into this formula, and the results reflect it: visibly smoother, frizz-free hair with the kind of shine that's usually reserved for salon appointments. At BestSkincareUSA.com, it's the essential second step in the PEPTIDE-132™ system — completing the Korean hair care routine that shampoo alone can't finish.

Key ingredients deeper dive

• Patented PEPTIDE-132™ with extended contact for deeper bond repair — The same 384.9-dalton, three-amino-acid peptide that bonds to keratin like puzzle pieces and penetrates the hair cortex — but in a treatment format, PEPTIDE-132™ has more time on the hair than in a rinse-off shampoo, allowing deeper reinforcement of weakened bonds before being sealed in by the plant-based oil complex. Used backstage at Paris Fashion Week — the first COSRX product chosen for that partnership.
• Plant-based oil complex for sealing and moisture locking — After PEPTIDE-132™ fills in broken bonds from within, a blend of plant-based oils coats the cuticle to lock in the moisture and nutrients the treatment delivers — creating a smooth, sealed surface that resists frizz and breakage throughout the day.
• Hydrolyzed vegetable protein and low-molecular collagen for structural restoration — Restore elasticity and reinforce hair structure alongside PEPTIDE-132™ — working on the hair's protein matrix to improve both strength and the feel of softness in strands that have become rough or brittle from chemical or thermal stress.
• 18 types of amino acids for intensive replenishment — Hair damaged by processing or heat loses essential amino acids, weakening its natural keratin structure. A comprehensive 18-type amino acid blend rebuilds from the inside out, improving hair's resilience and natural bounce across all hair types — straight, wavy, curly, and coily.
• Biotin, panthenol, niacinamide, and tocopherol for conditioning and protection — Biotin supports follicle-level hair health; panthenol adds body and moisture; niacinamide soothes the scalp at the root; tocopherol (Vitamin E) provides antioxidant protection and contributes directly to the visible shine this treatment is known for in user reviews.

Who it's for

The COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Treatment is designed for all hair types and all damage levels — from fine hair with seasonal dryness to heavily bleached or color-processed hair dealing with significant breakage and brittleness. It's particularly effective for coarse, frizzy, or tangled textures that need a smooth, manageable finish, and for anyone who wants visible softness and shine results from a rinse-off treatment without a heavy or greasy residue. Three sizes — 60ml, 120ml, and 240ml — make it accessible as a travel size, a regular weekly treatment, or a committed daily-use size for more intensive repair.

Pro tips and pairings

For the most intensive repair results, pair the COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Treatment with the COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo as the first step — the shampoo cleanses and begins bond repair, then the treatment deepens it with extended contact time. Leave the treatment on for 3–5 minutes on very damaged hair before rinsing to allow the PEPTIDE-132™ and oils maximum absorption time. Follow with the COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Oil Serum as a leave-in finishing step to seal the cuticle completely and add a final layer of shine and protection before styling.

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