COSRX - PEPTIDE-132 Ultra Perfect Hair Bonding Oil Serum [28ml]

COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Oil Serum is a lightweight oil-serum hybrid that smooths, strengthens and adds shine to damaged hair — a peptide-based leave-in treatment that works on the surface to tame frizz and protect strands without weighing them down.

COSRX PEPTIDE-132 Hair Bonding Oil Serum at a glance

What this oil serum does

Hair damage from heat styling, colouring and environmental stress breaks down the protein bonds that give hair its strength and smoothness. This oil serum is designed to coat and smooth the hair surface, reducing frizz and flyaways while adding a healthy-looking shine.

The peptide complex in the formula helps condition the outer layer of the hair strand, and the lightweight oil base keeps things smooth without the heavy, greasy feel of traditional hair oils. It is a finishing product — you apply it to damp or dry hair after washing, and it stays on to protect and smooth throughout the day.

A realistic expectation: this is a surface treatment. It improves how damaged hair looks and feels, and it helps protect against further mechanical and heat damage. It does not reverse structural damage from inside the strand — no topical product truly can. But for visible smoothing, frizz control and shine, it delivers well.

How to use it

1. After washing, towel-dry hair until damp (not dripping).
2. Dispense a small amount — start with two to three drops for medium-length hair.
3. Spread between palms and work through mid-lengths and ends, avoiding the roots.
4. Style as usual — blow-dry, air-dry or heat-style. The serum provides some heat protection.
5. Can also be applied to dry hair for touch-up smoothing and shine throughout the day.

Pair it with the treatment

For more intensive repair, use the PEPTIDE-132 Hair Bonding Treatment as a weekly deep conditioner, then follow with this oil serum daily for maintenance smoothing.

Browse the full COSRX range at EmartGCC.

Frequently asked questions

Will it make my hair greasy?

No. It is a lightweight oil-serum hybrid, not a heavy oil. Start with a small amount and add more if needed — a little goes a long way.

Can I use it on fine hair?

Yes, but use less — one to two drops. Apply only to the ends and mid-lengths to avoid flatness at the roots.

Does it protect against heat?

The oil layer provides some thermal protection during blow-drying and styling, though it is primarily a smoothing and finishing product rather than a dedicated heat protectant.

How is it different from the Bonding Treatment?

The Treatment is a rinse-out deep conditioner for weekly use. This Oil Serum is a daily leave-in finishing product. They work well together — Treatment for deeper conditioning, Oil Serum for daily smoothing and shine.

Can I use it on colour-treated hair?

Yes. It is gentle and does not strip colour. The smoothing effect can actually help colour-treated hair look healthier and shinier.

How long does 28ml last?

Using two to three drops per application, 28ml typically lasts four to six weeks of daily use.

Does it have a strong scent?

It has a light, clean fragrance that fades quickly after application.

Buying COSRX in Kuwait

EmartGCC supplies 100% original COSRX with free standard home delivery across Kuwait, usually next day. Areas beyond Fahaheel and Jahra carry a 3 KD delivery surcharge. Cash on delivery is available, and unopened items can be returned within 14 days.