The COSRX Peptide‑132 Ultra Perfect Hair Bonding Oil Serum is a lightweight, high-performance leave-in elixir designed to fortify and finish damaged hair. Powered by the brand’s patented PEPTIDE‑132™ (Tripeptide‑132 HCl), the serum works at a molecular level to strengthen hair bonds and seal cuticles with a boost of softness and shine.

This oil serum delivers:

• Deep bond repair to reinforce weakened keratin structure

• Smooth, frizz-free gloss without residual grease

• Thermal protection support during heat styling

• Enhanced manageability and softness for dry, dull, or brittle strands

Texture: Silky and ultra-light—a true finishing serum that absorbs swiftly without weighing hair down or leaving residue

To use: Apply a small amount to mid-lengths and ends of damp or dry hair. Do not rinse. Use before heat styling for added protection, or after styling to tame frizz and boost shine. Daily or as-needed use is suitable for most hair types

Ingredients: