COSRX
COSRX The Blue Peptide Bakuchiol Plump Glow Serum
Editorial research reviewLast researched 05/11/2026
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A 50 mL serum with bakuchiol, copper tripeptide-1 and niacinamide. Its separate serum format lets you keep your current moisturiser if you want to compare it with the matching cream.
- Best for
- Unknown
- Less suitable for
- Unknown
Who this suits
COSRX The Blue Peptide Bakuchiol Plump Glow Serum is a serum supplied in a 50ml size. Manufacturer usage guidance: Apply during the serum step and follow the directions on the pack. The full ingredient list below has been checked against the manufacturer listing, so the assessment reflects what is actually in the bottle rather than marketing copy. Cosmetic results are formulation-dependent and vary between people. We have not tested this product by hand; this page is research-led, built from disclosed formulation data and retailer information.
How the Blue Peptide serum differs from the cream
By the Korean PDRN editorial team · research-based, not a hands-on test · Updated 05/11/2026
The serum and cream have similar names, but are separate products with different ingredient lists. COSRX lists 0.25% bakuchiol for this 50 mL serum. The declaration also includes copper tripeptide-1 and niacinamide. That establishes what COSRX lists for the serum, without showing how quickly someone might notice a change.
Treat it as an optional serum step. The manufacturer's formula lets you compare it with your existing routine before adding another layer.
Ingredients
Full ingredient list below was checked against the manufacturer listing. Formulas can change; check the pack before buying.
Last source check 5 November 2026 (Global English manufacturer listing (USD), 50 mL): updated to the manufacturer listing.
Full ingredient list (INCI)
AQUA/WATER, BUTYLENE GLYCOL, GLYCERIN, DIPROPYLENE GLYCOL, NIACINAMIDE, 1,2-HEXANEDIOL, BETAINE, DIETHOXYETHYL SUCCINATE, AMMONIUM ACRYLOYLDIMETHYLTAURATE/VP COPOLYMER, DIMETHICONE, COPPER TRIPEPTIDE-1(GHK-Cu), POLYGLYCERYL-6 CAPRYLATE, POLYGLYCERYL-4 CAPRATE, BAKUCHIOL, HYDROGENATED LECITHIN, ALCOHOL, SODIUM METHYL STEAROYL TAURATE, ETHYLHEXYLGLYCERIN, HYDROXYPROPYL STARCH PHOSPHATE, DISODIUM EDTA, ADENOSINE, CAPRYLYL GLYCOL, TOCOPHEROL, DIPEPTIDE DIAMINOBUTYROYL BENZYLAMIDE DIACETATE, ACETYL HEXAPEPTIDE-1, ACETYL HEPTAPEPTIDE-4, PANTHENOL, INOSITOL, ACETYL HEXAPEPTIDE-8, SODIUM HYDROXIDE, PROPANEDIOL, BETA-GLUCAN, SODIUM HYALURONATE, HYALURONIC ACID, SODIUM HYALURONATE CROSSPOLYMER, HYDROLYZED COLLAGEN, HYDROLYZED HYALURONIC ACID, SODIUM ACETYLATED HYALURONATE, ACETYL OCTAPEPTIDE-3
Cosmetic information only. Ingredient effects are formulation-dependent and evidence is often limited. This is not medical advice.
Product details
- Size
- 50ml
- Texture
- Unknown
- Finish
- Unknown
- Packaging
- Unknown
- Routine step
- Serums
- How to use
- Apply during the serum step and follow the directions on the pack.
- Precautions
- Unknown