COSRX PEPTIDE-132 Hair Bonding Repair Treatment Deep Conditioner Mask — 8.11 fl oz, strengthens & hydrates damaged hair

COSRX PEPTIDE-132 Hair Bonding Repair Treatment is an intensive deep conditioner that rebuilds weakened keratin bonds to restore softness, shine, and strength to damaged, dry hair.

This salon-inspired hair mask uses COSRX's patented PEPTIDE-132 tripeptide complex to target fragile areas of the fiber, while collagen and hyaluronic acid deliver moisture and elasticity. Designed for all hair types, the formula works as a weekly intensive to reduce breakage, smooth split ends, and improve manageability without sulfates, parabens, phthalates, or animal-derived ingredients. Use it as part of the full PEPTIDE-132 routine for best results or as a standalone repair treatment when hair needs a concentrated boost.

How does this treatment repair broken hair bonds?

The PEPTIDE-132 complex is a small peptide blend engineered to interact with weakened keratin, helping strands re-form structural links and resist further breakage. It doesn't alter your hair's natural protein permanently; instead, it supports and reinforces existing keratin where it's most compromised. Over several uses, hair feels stronger and more cohesive.

• Patented Tripeptide targets and reinforces weak keratin sites
• Collagen restores fiber elasticity to reduce snapping
• Regular twice-weekly use rebuilds tensile strength over time

Will this hydrate dry, brittle hair without weighing it down?

The mask balances deep hydration with lightweight support so even fine or limp hair gains moisture without heavy residue. Hyaluronic acid draws and holds water in the cortex, while conditioning agents smooth cuticles for slip and shine. Rinse thoroughly for a soft, non-greasy finish suitable for styling or air-drying.

• Hyaluronic acid locks in hydration at the fiber core
• Conditioners smooth cuticles to prevent tangling and frizz
• Rinseable creamy texture leaves hair touchable and bouncy

How should I use the PEPTIDE-132 treatment for best results?

For a focused repair protocol, shampoo with the PEPTIDE-132 Shampoo, towel-blot hair, then apply this treatment from mid-lengths to ends twice weekly. Leave on for the brand-recommended time (or 5–15 minutes) before rinsing, and follow with the PEPTIDE-132 Hair Oil on semi-dry strands if desired. Consistent use alongside the trio maximizes bond rebuilding and sheen.

• Use after shampooing on clean, damp hair
• Apply mid-lengths to ends; leave 5–15 minutes, then rinse
• Follow with PEPTIDE-132 Hair Oil to seal and reduce frizz

Is this product safe for color-treated or sensitive scalps?

The formula is free from SLS/SLES, parabens, phthalates, and animal-derived ingredients, making it a gentler option for many users with treated hair or sensitive scalps. It’s formulated without animal testing and designed to work with professional color and chemical services, but patch testing or consulting your stylist is recommended after recent salon procedures.

• Free from harsh sulfates and parabens for gentler cleansing and conditioning
• Compatible with most color services when used as directed
• Patch-test if you have a highly reactive scalp or fresh chemical treatment

Who is this for: COSRX PEPTIDE-132 Hair Bonding Repair Treatment is intended for anyone with dry, damaged, chemically treated, or frequently styled hair who wants a concentrated weekly mask to restore strength, reduce split ends, and add lasting softness and shine. It’s suitable for all hair textures, from fine to coarse, and works especially well for people seeking salon-level bond repair at home within a clean-beauty formulation.