Metic, as in meticulous about cosmetics

Metic Beauty
COSRX The Blue Peptide Bakuchiol Plump Glow Serum
Bestseller
COSRX

The Blue Peptide Bakuchiol Plump Glow Serum

Serum · 50 mL

45%$21.38$38.80

Where to buy

Metic may receive a commission on purchases made through these links.

Key ingredients

Found in the full ingredient list below. Check how it layers with your routine

Full ingredients (39)
  1. Aqua/Water
  2. Butylene Glycol
  3. Glycerin
  4. Dipropylene Glycol
  5. Niacinamide
  6. 1,2-Hexanediol
  7. Betaine
  8. Diethoxyethyl Succinate
  9. Ammonium Acryloyldimethyltaurate/VP Copolymer
  10. Dimethicone
  11. COPPER TRIPEPTIDE-1(GHK-Cu)
  12. Polyglyceryl-6 Caprylate
  13. Polyglyceryl-4 Caprate
  14. Bakuchiol
  15. Hydrogenated Lecithin
  16. Alcohol
  17. Sodium Methyl Stearoyl Taurate
  18. Ethylhexylglycerin
  19. Hydroxypropyl Starch Phosphate
  20. Disodium EDTA
  21. Adenosine
  22. Caprylyl Glycol
  23. Tocopherol
  24. Dipeptide Diaminobutyroyl Benzylamide Diacetate
  25. Acetyl Hexapeptide-1
  26. Acetyl Heptapeptide-4
  27. Panthenol
  28. Inositol
  29. Acetyl Hexapeptide-8
  30. Sodium Hydroxide
  31. Propanediol
  32. Beta-Glucan
  33. Sodium Hyaluronate
  34. Hyaluronic Acid
  35. Sodium Hyaluronate Crosspolymer
  36. Hydrolyzed Collagen
  37. Hydrolyzed Hyaluronic Acid
  38. Sodium Acetylated Hyaluronate
  39. Acetyl Octapeptide-3

Listed from highest to lowest concentration. Formulas change, so check the packaging if you avoid an ingredient.

Product details

A bottle of The Blue Peptide Bakuchiol Plump Glow Serum on a periwinkle table between blue serum drops and violet petals

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
A pool of clear cobalt-blue serum with bubbles, ringed by droplets and violet petals

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

A bottle of The Blue Peptide Bakuchiol Plump Glow Serum beside drops of clear blue serum

How to use

After toner, morning and night

  1. 1

    Prep

    Cleanse and tone, leaving skin slightly damp.

  2. 2

    Dispense

    Squeeze a few drops of the watery blue serum from the dropper.

  3. 3

    Smooth

    Glide it over your face and pat gently until absorbed.

  4. 4

    Seal

    Follow with moisturizer, and sunscreen in the morning.

A single glossy drop of blue serum on lavender

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.