Peptide-132 Hair Bonding Oil SerumCOSRX Peptide-132 Hair Bonding Oil Serum 28 ml (0.9 fl oz)

A single pump for glossy, smoother lengths

One pump of this COSRX oil serum is enough to add shine, help detangle and reduce flyaways, which makes it a handy finishing step before styling. The brand describes the texture as lightweight and not greasy, and says it suits all hair types, including dry, brittle and colour-treated hair.

Peptides with argan and jojoba

Alongside the oils, the formula carries COSRX's Peptide-132 tripeptide complex, which the brand says is designed to bond to weakened keratin and reinforce strands. COSRX also states it helps protect hair against heat styling. It is made without SLS/SLES, parabens, phthalates or animal-derived ingredients, and is not tested on animals.

Travel-size bottle

The 28 ml pump bottle stands about 11 cm tall, compact enough for a wash bag or handbag. It is made in Korea.

How to use

Apply one pump to damp or dry hair, concentrating on the mid-lengths and ends. The brand suggests using it twice a week alongside the Peptide-132 shampoo and treatment, and applying it to semi-wet hair to help seal in moisture and tame frizz.

Before you choose

This is a finishing oil, not a rinse-out conditioner. For external use only. Avoid contact with eyes, stop using it if irritation or redness occurs, and keep out of reach of children. Korean-market product: packaging may show Korean text.

Standard UK delivery: free on all orders. Estimated 2–3 working days after dispatch.

Express UK delivery: estimated 1–2 working days after dispatch. Free on orders over £75.

Please allow up to 2 working days for order processing; orders are often dispatched the next working day. Delivery times are estimates, not guarantees.

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