COSRX's first move into haircare — and they brought their skincare ingredient philosophy with them. The Peptide-132 Hair Bonding Oil Serum is built around PEPTIDE-132™, a patented tripeptide (Tripeptide-132 HCl) that penetrates into the hair cortex to repair the protein bonds broken by heat, color, bleaching and mechanical damage. The same type of bond-repair technology that made Olaplex famous, now in a lightweight oil serum format from one of K-beauty's most trusted brands. Enriched with 7 botanical oils and vitamin E. Citrus woody scent with bamboo and green notes. Apply to damp or dry hair — a small amount goes a long way. 28ml.

• PEPTIDE-132™ — Patented Bond Repair Tripeptide — Tripeptide-132 HCl is a three-amino-acid peptide developed and patented by COSRX; it penetrates past the hair cuticle into the cortex, where hair's internal protein bonds (disulfide bonds and hydrogen bonds) are located; heat styling, bleaching and chemical coloring break these bonds, causing porosity, brittleness, frizz and breakage; PEPTIDE-132™ fills in broken bond sites and helps restore the structural integrity of the hair shaft from the inside out — this is the "bonding" in the product name, not just surface coating
• 7 Botanical Oils — Argan + Camellia Japonica + Jojoba + Rice Bran + Macadamia + Olive + Grape Seed — argan (the gold standard for anti-frizz and heat protection) forms the primary protective coat; camellia japonica (tsubaki) has been used in Japanese haircare for centuries for its oleic-acid-rich silkiness; jojoba mimics the scalp's natural sebum for lightweight conditioning; rice bran is rich in ferulic acid and gamma-oryzanol for shine and antioxidant protection; macadamia contains palmitoleic acid (omega-7) that matches hair's own lipid structure; olive provides emollient depth; grape seed adds linoleic acid lightness without heaviness
• Tocopherol (Vitamin E) + Silicone Base — vitamin E is an antioxidant that protects the botanical oils from oxidation and shields hair from free radical damage caused by UV and pollution; the silicone base (dimethicone, dimethiconol, aminopropyl dimethicone) creates the slip-rich, frizz-sealing coating that gives instant smoothness and shine — the formula is not silicone-free but uses a carefully balanced silicone-oil combination rather than heavy silicone alone, allowing the botanical oils to penetrate while the silicones seal and protect the surface

Apply a small amount (1–2 pumps or a pea-sized drop) to damp or dry hair from mid-length to ends. Avoid the roots. A little goes a long way — start with less than you think you need and add more if required. Can be used as a finishing serum after styling or as a pre-styling protectant. 28ml.

Korean haircare at Olive Kollection since 2018 — free shipping on orders over $40.