COSRX PEPTIDE 132 Hair Repair Treatment, 8.11 fl oz Review
An 8.11 fluid ounce COSRX PEPTIDE 132 deep conditioning hair treatment built around a patented Tripeptide complex with Collagen and Hyaluronic Acid for dry, damaged hair.
| Brand | COSRX |
|---|---|
| Size | 8.11 fl oz |
| Key complex | PEPTIDE 132 Tripeptide |
| Other key ingredients | Collagen, Hyaluronic Acid |
| Free from | SLS, SLES, parabens, phthalates |
| Animal testing | Not tested on animals |
| Best for | Dry, damaged hair that needs intensive bond repair rather than a light, everyday conditioner |
Product Overview
COSRX positions this as an at-home alternative to a salon keratin treatment rather than a basic rinse-out conditioner.
The patented Tripeptide complex is the core ingredient the rest of the formula is built around.
Score Breakdown
This verdict is based on the manufacturer's stated specifications, the current Amazon listing and its product images, the confirmed materials and design, real buyer ratings, and our research into the product category. Scores are consistent editorial judgments, not laboratory measurements, and we did not receive a paid sample.
Key Features
Targets damaged keratin for repair.
Restores moisture and elasticity.
Pairs with shampoo and hair oil.
Free from SLS, SLES, parabens.
Suitable for sensitive scalps.
Design and Build Quality
The formula combines COSRX's PEPTIDE 132 Tripeptide complex with Collagen and Hyaluronic Acid, aimed at restoring moisture and elasticity to dry, brittle hair.
It ships as an 8.11 fluid ounce bottle, free from SLS, SLES, parabens, phthalates and animal-derived ingredients.
Performance in Everyday Use
COSRX states the Tripeptide complex binds to weak keratin structures to help repair breakage, minimize split ends and reinforce each strand, leaving hair soft, shiny and silky.
For best results, COSRX recommends applying the treatment twice a week as part of a routine with the matching shampoo and hair oil, using it before styling or whenever hair feels dry.
How It Performs: The Evidence
| Decision factor | What we found | Evidence and measurement | Score | Why it matters |
|---|---|---|---|---|
| Size | 8.11 fl oz | Title and size field both state 8.11 fl oz | 8.1 | Confirms the stated product size |
| Core complex | PEPTIDE 132 Tripeptide | Listing states Formulated with our exclusive Tripeptide complex, PEPTIDE-132 | 8.3 | Confirms the stated core ingredient complex |
| Supporting ingredients | Collagen, Hyaluronic Acid | Listing states Enriched with Collagen and Hyaluronic Acid | 8.3 | Confirms the stated supporting ingredients |
| Free from claims | SLS, SLES, parabens, phthalates | Listing states Free from SLS/SLES, parabens, phthalates, and animal-derived ingredients | 8.2 | Confirms the stated formula exclusions |
| Animal testing policy | Not tested on animals | Listing states Formulated without animal testing | 8.1 | Confirms the stated animal testing policy |
| Recommended frequency | Twice a week | Listing states apply the PEPTIDE-132 Hair Treatment twice a week | 8.0 | Confirms the stated recommended usage frequency |
Who Should Buy It
- Dry, damaged or breakage-prone hair
- Buyers wanting a clean beauty formula
- Twice weekly intensive hair treatment routines
- Pairing with the matching PEPTIDE 132 shampoo and oil
- Anyone wanting a daily rinse-out conditioner rather than a twice-weekly intensive treatment
- Best results depend on also using the matching shampoo and hair oil
- Recommended twice weekly, not a daily conditioner replacement
- No dimensions or weight data listed for the bottle itself
- Intensive formula may be more than very mild hair damage needs
Full Specifications
How It Compares
| Feature | COSRX | Typical option | Higher-tier option |
|---|---|---|---|
| Core ingredient | Patented PEPTIDE 132 Tripeptide | Basic silicone conditioner | Comparable peptide hair treatment |
| Supporting ingredients | Collagen, Hyaluronic Acid | No stated supporting actives | Comparable collagen hair treatment |
| Formula profile | Free from SLS, SLES, parabens | Standard sulfate formula | Comparable clean beauty treatment |
| Testing | Not tested on animals | No stated testing policy | Comparable cruelty-free treatment |
| Usage | Twice weekly treatment | Daily rinse-out conditioner | Comparable twice-weekly treatment |
Alternatives Worth a Look
An 8.11 fluid ounce COSRX PEPTIDE 132 deep conditioning hair treatment built around a patented Tripeptide complex, Collagen and Hyaluronic Acid, free from SLS, SLES, parabens and animal-derived ingredients. It suits dry, damaged hair needing intensive, twice-weekly bond repair well, with the main consideration being it is designed to pair with the brand's matching shampoo and oil for best results.
Frequently Asked Questions
What size is this bottle?
8.11 fluid ounces.
What is the core repair ingredient?
COSRX's patented PEPTIDE 132 Tripeptide complex.
How often should it be used?
Twice a week, per COSRX's recommended routine.
Is it free from sulfates and parabens?
Yes, SLS, SLES, parabens and phthalates are excluded.
Is it tested on animals?
No, it is formulated without animal testing.
What hair types is it suited for?
All hair types, per the brand, especially dry and damaged hair.
This review is based on COSRX's own stated ingredients, usage routine and formula claims as listed. It is editorial analysis of the stated specifications, not independent testing of bond repair or breakage reduction.