
The Blue Peptide Bakuchiol Plump Glow Serum
Serum · 50 mL
Where to buy
DODOSKIN
50 mL
45%$21.38$38.80Buy at DODOSKINStylevana
50 mL
20%$21.60$27.00Buy at StylevanaYesStyle
50 mL
20%$21.60$27.00Buy at YesStyleSkinSeoul
50 mL
14%$28.10$32.75Buy at SkinSeoul
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Key ingredients
Found in the full ingredient list below. Check how it layers with your routine
Full ingredients (39)
- 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
Listed from highest to lowest concentration. Formulas change, so check the packaging if you avoid an ingredient.
Product details

Firm + plump
A naturally blue peptide serum with bakuchiol and niacinamide for firmer, plumper, glowier-looking skin.
COSRX built this sheer, watery serum around copper tripeptide-1, the peptide that gives it its blue colour, and bakuchiol. Together with a blend of peptides, niacinamide and hyaluronic acid, it targets the early signs: pores that look larger, rougher texture and a loss of bounce.
- Its colour comes from copper peptide, not dye
- Blue
- Its colour comes from copper peptide, not dye
- A gentle firming partner for the peptides
- Bakuchiol
- A gentle firming partner for the peptides
- Lightweight, watery serum
- 50 mL
- Lightweight, watery serum

What’s inside
The ingredients doing the work
Blue copper peptide
The naturally blue peptide at the heart of the formula, for skin that looks firmer and more energized.
No. 11 of 39 on the list
Bakuchiol
A plant-derived ingredient that helps visibly refine pores and smooth texture alongside the peptides.
No. 14 of 39 on the list
Peptide blend
More peptides, plus hydrolyzed collagen and adenosine, for a bouncy, resilient feel.
No. 24, 25, 26, 29, 39 of 39 on the list
Niacinamide + inositol
COSRX’s sebum-balancing pair, for a more even tone and a refined finish.
No. 5, 28 of 39 on the list
Hyaluronic acid + betaine
Layered hydrators that plump skin with moisture for a dewy, glass-like glow.
No. 7, 33, 34 of 39 on the list
Beta-glucan + panthenol
A soothing duo that keeps the barrier comfortable.
No. 27, 32 of 39 on the list

How to use
After toner, morning and night
- 1
Prep
Cleanse and tone, leaving skin slightly damp.
- 2
Dispense
Squeeze a few drops of the watery blue serum from the dropper.
- 3
Smooth
Glide it over your face and pat gently until absorbed.
- 4
Seal
Follow with moisturizer, and sunscreen in the morning.

Bouncy, glowing skin
A light blue serum that keeps skin looking firm, smooth and luminous before concerns settle in.
Good to know
- The blue colour is natural to copper tripeptide-1. It can shift over time with light and heat without affecting quality, per COSRX.
- COSRX advises not using it at the same time as strong vitamin C products (such as its Vitamin C 23 serum), which can cause temporary discoloration.
- Free of fragrance and synthetic colorants, and tested on sensitive skin, per COSRX.
- 50 mL dropper bottle.
