COSRX may be best known for their cult-favorite snail mucin and skincare acids, but now they’ve entered the hair game with a science-backed, peptide-powered routine. The new PEPTIDE-132 Hair Care line features a 3-step system designed to strengthen, hydrate, and smooth damaged or thinning hair. Powered by Peptide-132, a cosmetic peptide known for supporting protein synthesis and scalp vitality. This routine is ideal for anyone dealing with breakage, hair fall, dullness, or scalp sensitivity. Check out my full COSRX Peptide-132 hair care routine review below!
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Step 1: COSRX Peptide-132 Ultra Perfect Hair Bonding Shampoo – Cleanse & Revive
What it does: This sulfate-free shampoo gently cleanses the scalp while delivering scalp-care ingredients like Peptide-132 and Panthenol. It removes buildup, refreshes the scalp, and preps hair for deeper nourishment without stripping moisture.
My experience: The texture is lightweight, slightly creamy, and lathers well. My scalp felt clean but not dry, and there was no itch or tightness post-rinse. The scent is subtle and spa-like—think clean, herbal, and refreshing.
Why it’s great for damaged or thinning hair: Healthy hair starts with a healthy scalp, and this shampoo does both. It’s a great alternative for people who find traditional clarifying shampoos too harsh.
Step 2: COSRX Peptide-132 Ultra Perfect Hair Bonding Treatment – Strengthen & Smooth
What it does: This rich conditioning treatment is packed with Peptide-132, Hydrolyzed Keratin, and Amino Acids to restore hair’s strength, reduce breakage, and smooth frizz. It works like a deep conditioner but doesn’t weigh hair down.
My experience: I left it on for 3-5 minutes as recommended, and my hair instantly felt softer and more manageable. After rinsing, it was easier to detangle and noticeably less frizzy—even without heat styling.
Bonus: It’s safe for color-treated hair and adds a nice silkiness to dry or bleached ends.
Step 3: COSRX Peptide-132 Ultra Perfect Hair Bonding Oil Serum – Hydrate & Protect
What it does: The final step is a leave-in hair bonding oil serum, a lightweight fluid you apply to damp or towel-dried hair. It seals in moisture, smooths the cuticle, and acts as a heat and environmental protectant.
Hero ingredients: In addition to Peptide-132, this step includes Hyaluronic Acid, Ceramides, and Silk Protein for hydration, barrier repair, and shine.
My experience: This was my favorite step. It absorbed quickly with no stickiness, gave my ends a hydrated, glossy look, and left zero residue. Great as a primer before blow-drying or as a mid-week refresh.
Final Verdict – Is COSRX Peptide-132 Worth It?
If you’re looking for a simple but powerful hair routine that supports scalp health, strengthens strands, and delivers visible shine, the COSRX PEPTIDE-132 3-Step Hair Care Routine is a great option—especially if you already love their skincare.
Each step is thoughtfully formulated with a blend of peptides, proteins, and hydrators, targeting the most common concerns: weak strands, scalp buildup, and frizz. Plus, it’s gentle enough for daily use and suitable for all hair types, including color-treated and fine hair.
PRO TIP: Use my code ‘PURPLE5‘ for an additional 5% off your orders on YesStyle.
