COSRX Peptide-132 Ultra Perfect Hair Bonding Oil Serum 28mL

A hair oil serum is a leave-in finishing product used on the lengths and ends rather than a shampoo or rinse-out conditioner. Its job is to coat and condition the hair’s surface, improving slip, shine and the feel of rough areas. Start with a small amount so you can adjust the finish to your hair.

COSRX combines its PEPTIDE-132 bonding-care concept with silicones, botanical oils and vitamin E. This formula is particularly aimed at frizz, dullness, brittleness and damaged-looking ends. It can be used after washing on damp hair or to smooth dry lengths, without needing to add another rinse step.

Peptide care with seven oils and a silky finish

The serum’s blend balances a smooth spreading texture with oils chosen for conditioning and shine. It is not a pure botanical oil: silicones are central to the lightweight, polished feel. A small amount is intended to cover the lengths without leaving the heavy residue associated with over-applying a rich oil.

• PEPTIDE-132: Tripeptide-132 HCl is included in COSRX’s targeted hair-bonding care concept. The formula is designed to complement a cleansing and conditioning routine rather than replace those steps.
• Seven botanical oils: Argan, olive, camellia, jojoba, rice bran, grape seed and macadamia oils provide a varied conditioning blend for the lengths and ends.
• Silicone-based texture: Dimethicone, dimethiconol and related silicones help the serum spread smoothly through hair and support the soft, glossy finish.
• Vitamin E: Tocopherol accompanies the oil blend as a highlighted ingredient, supporting the formula’s conditioning and shine-focused design.
• Leave-in application: Use a small amount on damp or dry hair from the mid-lengths to the ends. This allows a focused finishing step without rinsing it out.
• Added fragrance: The formula contains fragrance and listed fragrance components. COSRX describes the scent with citrus, green and woody notes.

Smoother lengths with visible shine

The practical focus is a polished appearance and a comfortable hair feel. COSRX positions the serum for rough texture, flyaways, split-end appearance and dullness. It supports cosmetic hair conditioning; it does not permanently rejoin an already split strand or replace trimming damaged ends.

• Controls the look of frizz: The smoothing coating helps flyaways and rough lengths look more controlled, making the finish appear neater after styling.
• Adds gloss: Light-reflecting smoothness enhances the appearance of shine, particularly when hair looks dull or the ends lack a polished finish.
• Softens rough-feeling ends: Conditioning oils and silicones improve slip and softness so the lengths feel less dry and easier to handle.
• Flexible on wet or dry hair: Apply to damp lengths after washing or use a small amount on dry hair when you want to refresh the finish without another wash.
• Adjustable lightweight care: Beginning with a small amount helps you find a balance between smoothness and weight for your hair. Concentrating on the ends keeps application targeted.

You Get:

• 1 bottle of COSRX Peptide-132 Ultra Perfect Hair Bonding Oil Serum 28mL