COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo

COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo

Strengthen damaged hair while gently cleansing with the COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo, a bond-repair shampoo designed to help improve the feel of dry, brittle, or chemically stressed hair while keeping the scalp fresh, balanced, and comfortable. This daily-use shampoo creates a rich lather that helps wash away buildup without leaving hair feeling stripped.

Formulated with PEPTIDE-132™, hydrolyzed vegetable protein, low-molecular collagen, 18 amino acids, biotin, panthenol, niacinamide, and tocopherol, this hair care formula helps support smoother, stronger-looking strands from root to tip. PEPTIDE-132™ helps reinforce the look and feel of weakened hair bonds, while hydrolyzed vegetable protein and collagen help improve softness and resilience. A blend of 18 amino acids helps support healthier-looking hair, while biotin, panthenol, niacinamide, and tocopherol help care for both the scalp and hair for a refreshed, conditioned finish.

The COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo is a great choice for anyone looking for a K-beauty bonding shampoo, repair shampoo for damaged hair, or a daily strengthening shampoo that helps care for both hair and scalp in one step. It is especially helpful for hair affected by heat styling, dryness, color treatments, or chemical processing.

Size: 100ml / 3.38 fl. oz | 200ml / 6.76 fl. oz | 400ml / 13.52 fl. oz

Overview

The COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo is a bond-strengthening shampoo created to help gently cleanse while supporting smoother texture, improved softness, and healthier-looking hair. Designed for all damage levels — from mild dryness to more severe chemical damage — it also helps comfort the scalp with a pH-balanced, mildly acidic formula.

Key benefits

• Helps gently cleanse while supporting damaged hair repair
• Supports smoother, softer, stronger-looking strands
• Helps comfort the scalp with a pH-balanced formula
• Formulated with PEPTIDE-132™, hydrolyzed vegetable protein, low-molecular collagen, 18 amino acids, biotin, panthenol, niacinamide, and tocopherol
• Helps care for both hair and scalp in one step
• Suitable for daily use

How to use

Apply an appropriate amount to wet scalp and hair. Gently massage into scalp and hair until fully lathered, then rinse thoroughly with lukewarm water.

Why we love it

Most bond-repair treatments sit on shelves as weekly treatments or salon steps — not something you use every day. The COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo flips that by building repair directly into the cleansing step, so every wash is also a treatment. The patented PEPTIDE-132™ is a small-molecule peptide (384.9 daltons) made of three amino acids that bonds like puzzle pieces to keratin, penetrating deep into the hair cortex to fill in weakened areas caused by heat, color, or chemical processing. This isn't topical coating — it's genuine internal bond reinforcement, clinically shown to deliver 2.7x protein bonding and 1.8x smoother strands. The scalp benefits are equally well-formulated: Piroctone Olamine, Zinc PCA, and Caffeine address flakes, excess oil, and irritation, while the mildly acidic pH protects the scalp's natural barrier. At BestSkincareUSA.com, it's the standout Korean hair care recommendation from COSRX — the brand that brought the same clinical rigor it applies to skincare directly to hair.

Key ingredients deeper dive

• Patented PEPTIDE-132™ — deep cortex keratin bond repair — A three-amino-acid peptide at 384.9 daltons — small enough to penetrate the hair cortex rather than sitting on the surface. It bonds directly to keratin's weakened points, filling in and holding damaged areas together while locking other beneficial ingredients in place. The result is hair that's measurably stronger (2.7x protein bonding) and smoother (1.8x) — the patented mechanism behind every claim in this formula from COSRX.
• Hydrolyzed vegetable protein and low-molecular collagen for structural support — Work alongside PEPTIDE-132™ to repair and reinforce the hair's protein structure from the outside in — softening the texture of rough or brittle strands and improving resilience against future damage from heat and styling.
• 18 types of amino acids for comprehensive hair nourishment — Amino acids are the building blocks of keratin; a complete 18-type blend ensures the hair has the full range of building materials it needs to maintain elasticity, strength, and a healthy appearance — particularly important for hair that has lost protein through chemical or thermal stress.
• Biotin, panthenol, niacinamide, and tocopherol for scalp and strand conditioning — Biotin supports hair health from the follicle; panthenol (Vitamin B5) conditions and adds body; niacinamide soothes the scalp and supports a balanced environment; tocopherol (Vitamin E) provides antioxidant protection and contributes to shine — a four-active conditioning complex that makes this shampoo as much a scalp treatment as a hair repair formula.
• Piroctone Olamine, Zinc PCA, and Caffeine for targeted scalp care — Address the scalp concerns most commonly paired with hair damage: Piroctone Olamine helps with flakes, Zinc PCA helps regulate oil production, and Caffeine stimulates the scalp for a refreshed, energized feel — making this shampoo clinically shown to increase scalp pore cleanliness by 73.3%.
• Fresh "Green Ivy" signature scent — COSRX's exclusive fresh citrus woody fragrance, inspired by bamboo forests, opens with crisp green notes and finishes with soft clean woods — a subtle, gender-neutral scent that's widely praised and leaves hair smelling clean rather than perfumed.

Who it's for

The COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo is designed for all damage levels and all hair types — from fine hair with mild seasonal dryness to thick, heavily processed hair dealing with breakage and brittleness from color treatments or heat. It's equally well-suited for those with scalp concerns like flaking, excess oil, or irritation alongside their hair damage, and for anyone who wants a daily shampoo that consistently repairs and strengthens rather than simply cleansing. Three sizes — 100ml, 200ml, and 400ml — make it accessible as a trial size, an everyday staple, or a salon-quantity value purchase for dedicated daily use.

Pro tips and pairings

For maximum bond-repair results, follow the COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo with the COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Oil Serum as a leave-in treatment — the shampoo prepares the hair by cleansing and opening the cuticle, and the oil serum then locks in the PEPTIDE-132™ bonds with a sealing, smoothing layer for all-day protection. Leave the lather on the hair for 1–2 minutes before rinsing when hair is particularly damaged — this gives the PEPTIDE-132™ additional contact time to penetrate the cortex and reinforce bonds before being washed away.

Explore more from COSRX: Shop COSRX