Cosrx, known for Korean skincare, also offers a dedicated hair care line. On Qathu, you'll find 16 Cosrx hair products designed for those seeking repairing, nourishing, and protective treatments.
This guide helps you understand who the Cosrx hair line is for, how to choose between shampoos, masks, serums, and treatments, and which key products to know. You'll also find practical usage tips and common mistakes to avoid.
The products we talk about
Who Is Cosrx Hair For and How to Navigate
Cosrx hair products are perfect for those looking for repairing, nourishing, and protective treatments. The range suits both those seeking anti-hair loss solutions and those wanting to repair damaged hair or simply maintain hair health.
- If you have fragile or chemically treated hair, consider repairing shampoos and masks.
- If you need extra nourishment, try the regenerating serum.
- For travelers or those wanting to test before buying the full size, mini sizes are also available (for example, 100 ml shampoo, if available).
- Prices range from €14.95 for the 60 ml mask up to €48.32 for the larger sizes.
How to Choose Between Cosrx Hair Lines and Sizes
The entire Cosrx hair line on Qathu is based on Peptide-132 Ultra Perfect technology, focused on repair. You can choose from:
- Shampoo: available in 100 ml (not always available), 200 ml, and 400 ml. The 200 ml size (Cosrx Peptide 132 Ultra Perfect Regenerating Shampoo 200 ml — Shampoo, €26.27) is a good middle ground for regular use.
- Hair Mask: two sizes: 60 ml (€14.95) and 240 ml (€48.32). Pick the small size to test or for travel, the large for frequent use.
- Serum and Treatments: the 28 ml serum (€24.17) is designed to nourish and repair lengths, while the 120 ml intensive treatment (€21.39) is used as an extra step after shampoo.
6 Cosrx Hair Products to Know and Why
- Cosrx Peptide-132 Ultra Perfect Hair Bonding Shampoo - 400 ml: repairing and anti-hair loss shampoo, suitable for regular routines and families.
- Cosrx Peptide-132 Ultra Perfect Hair Bonding Treatment regenerating hair mask - 60 ml: repairing mask in trial or travel size.
- Cosrx Peptide-132 Ultra Perfect Hair Bonding Treatment regenerating hair mask - 240 ml: same formula, large size for consistent use.
- Cosrx Peptide 132 Ultra Perfect Regenerating Shampoo 200 ml — Shampoo: repairing shampoo, ideal for those wanting a medium size.
- Cosrx Peptide 132 Ultra Perfect Hair Regenerating Serum 28 ml — Hair Serum: nourishing and repairing serum for lengths and ends.
- Cosrx Peptide 132 Ultra Perfect Intensive Regenerating Treatment 120 ml — Hair Treatment: extra treatment for damaged hair, used after shampoo.
Usage Tips and Mistakes to Avoid
To get the most from Cosrx hair products:
- Apply shampoo on wet hair, gently massage, and rinse thoroughly.
- Use the mask 1-2 times a week, leaving it on as directed.
- The serum is applied on lengths, preferably on damp or dry hair, without rinsing.
- The intensive treatment is used after shampoo, either before or instead of the mask, depending on your needs.
Avoid layering too many products in the same routine: pick 1-2 extra treatments at a time. Do not apply the mask on roots if you have oily hair. Always follow the specific instructions on the packaging.
Discover all Cosrx hair products on Qathu · Prodotti per Capelli Cosrx (16)
Frequently asked questions
Is Cosrx hair suitable for all hair types?
The Cosrx hair line is designed for hair needing repair, nourishment, or protection. It can also be used on treated or fragile hair.
Can I use the Cosrx mask every day?
It's recommended to use the mask 1-2 times a week, depending on your hair's needs.
What's the difference between the Cosrx serum and intensive treatment?
The serum is meant to nourish and protect lengths, while the intensive treatment is used after shampoo as an extra step for very damaged hair.
Are Cosrx hair products available in different sizes?
Yes, you can find shampoos in various sizes (100 ml, 200 ml, 400 ml) and masks in 60 ml or 240 ml, plus serum and intensive treatment.
How can I save when buying on Qathu?
Subscribe to the Qathu newsletter to get 4% off with code 4QATHU. Shipping from Italy and returns within 14 days.
Shipping to over 60 countries from Italy: outside the EU duties and taxes are included in the price (DDP), no surprises at delivery. Returns within 14 days of delivery. Newsletter discount code: 4QATHU. Prices and availability updated on 2026-10-22.