Is it a leave-in or rinse-out product?

Leave-in. Apply a small amount to the mid-lengths and ends and don't rinse.

What are the key ingredients?

Tripeptide-132 HCl, argan, olive, camellia and jojoba oils, and tocopherol (vitamin E).

Does it contain fragrance?

Yes. Fragrance is listed, along with limonene, linalool and citronellol.

Where is the brand from and where does it ship from?

COSRX is a South Korean brand. Orders ship from Korea with tracking, usually in 5–10 business days.

COSRX Peptide-132 Hair Bonding Oil Serum 28ml

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

Name: COSRX Peptide-132 Ultra Perfect Hair Bonding Oil Serum 28ml
Brand: COSRX
SKU: d0a9d394-5835-4d47-979e-53f52053405d
Price: 17.99 USD
Availability: InStock

$17.99

Authentic Korean skincare, sourced through our Korea-based supplier and shipped straight to you.
Ships from Korea and usually arrives in 5 to 10 business days, with tracking emailed. Free US shipping on orders $45+; $7.95 under that.
Damaged, leaking or wrong item? We'll replace it or refund you, no return needed. Our policy
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Frizz, meet your match: glossy ends, zero greasy feel

A Korean hair serum with peptides.

Frizzy, dry ends can ruin a good hair day before you leave the house. A few drops of this lightweight leave-in oil, made with argan, olive, camellia and jojoba oils plus Tripeptide-132, help smooth frizz and add shine without a greasy feel. It's the finishing step of the Peptide-132 routine, in a 28ml bottle that fits in your bag.

Learn more: Hair Feeling Thinner Lately? A Gentle Routine for Fuller-Looking Hair

Key benefits & what's included

Smoother-looking lengths with less frizz
Glossy shine and softness without a greasy feel
Easier styling for dry-feeling hair
Use on damp or dry hair, no rinsing needed
What's included: One 28ml oil serum

MAIN INGREDIENTS

Tripeptide-132 HCl — Featured peptide in the formula.
Argan, Olive, Camellia and Jojoba Oils — Help nourish and condition hair.
Tocopherol — Vitamin E ingredient.

RECOMMENDED FOR

Dry, damaged and frizzy hair.
Those seeking a lightweight leave-in finishing oil.

HOW TO USE

Apply a small amount evenly to damp or dry hair, focusing on the mid-lengths and ends. Do not rinse. Use daily or as needed.

Still deciding?

Will it make my hair look oily?
It's lightweight. Start with a small amount on the mid-lengths and ends, and keep it away from your roots.

Damp or dry hair?
Either. Use it on damp hair before styling or on dry hair to tame flyaways, daily or as needed.

Is 28ml enough?
You only need a small amount each time, so a little bottle goes a long way.

Product specs

Brand	COSRX
Size	28ml
Format	Leave-in hair oil serum
Hair type	Dry, damaged and frizzy hair
Key ingredients	Tripeptide-132 HCl, argan, olive, camellia and jojoba oils, tocopherol
How to use	Apply a small amount to damp or dry mid-lengths and ends. Do not rinse. Daily or as needed.
Storage	Store at room temperature, away from direct sunlight. Close the cap after use.
Brand origin & ships from	South Korea · ships from Korea with tracking

FULL INGREDIENT LIST

Dimethicone, Hydrogenated Poly(C6-14 Olefin), Cetyl Ethylhexanoate, Dicaprylyl Carbonate, Dimethiconol, Disiloxane, Dicaprylyl Ether, Aminopropyl Dimethicone, Argania Spinosa Kernel Oil, Hexyldecanol, Fragrance, Hexyl Cinnamal, Limonene, Citronellol, Tocopherol, Linalool, Benzyl Benzoate, Olea Europaea (Olive) Fruit Oil, Camellia Japonica Seed Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Oryza Sativa (Rice) Bran Oil, Vitis Vinifera (Grape) Seed Oil, Macadamia Ternifolia Seed Oil, Tripeptide-132 HCl.