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Caffeine Solution 5% + EGCG vs The 6 Peptide Skin Booster Serum: which is better?

The choice turns on whether you want quick, temporary under-eye depuffing or lightweight hydration and smoother layering.

Reddit’s pick

The 6 Peptide Skin Booster Serum

  • Rated higher: The 6 Peptide Skin Booster Serum — 94 vs 71 nextscore

COSRX The 6 Peptide Skin Booster Serum earns far more praise than complaints for lightweight hydration and easy layering; even when results stay subtle, its watery texture makes a smooth makeup-prep step.

Choose Caffeine Solution 5% + EGCG if

  • you want quick morning depuffing for tired under-eyes
  • your main concern is under-eye bags

Choose The 6 Peptide Skin Booster Serum if

  • you want lightweight hydration without a heavy finish
  • you want a watery prep step that layers under makeup

At a glance

Caffeine Solution 5% + EGCGThe 6 Peptide Skin Booster Serum
$0.41/ml$0.10/ml
71 · 92 verdicts94 · 94 verdicts
CaffeineNiacinamide, Peptides

What Reddit says

Caffeine Solution 5% + EGCG

What Reddit likes

  • Quick, temporary depuffing for morning eye bags
  • Very thin serum that absorbs quickly
  • Can make tired under-eyes look brighter

Watch out for

  • Barely changes genetic or pigment-based dark circles
  • Sticky texture can make concealer cake
  • Can trigger dryness, irritation, or redder-looking under-eyes

The 6 Peptide Skin Booster Serum

What Reddit likes

  • Watery toner-serum texture; layers under everything
  • Excellent skin-prep step for smoother layering and makeup
  • Lightweight hydration without a heavy finish

Watch out for

  • Results can stop at mild hydration and a little glow
  • Breakouts reported around the jawline
  • Can trigger redness, flushing, or blotchiness
Compare full ingredient lists · 8 in common

In both · 8

  1. Aqua/Water/Eau
  2. Glycerin
  3. Polyacrylate Crosspolymer-6
  4. Xanthan Gum
  5. Pentylene Glycol
  6. 1,2-Hexanediol
  7. Ethylhexylglycerin
  8. Caprylyl Glycol

Only in Caffeine Solution 5% + EGCG · 18

  1. Caffeine
  2. Maltodextrin
  3. Propanediol
  4. Epigallocatechin Gallatyl Glucoside
  5. Gallyl Glucoside
  6. Hyaluronic Acid
  7. Oxidized Glutathione
  8. Melanin
  9. Glycine Soja (Soybean) Seed Extract
  10. Hydroxyethylcellulose
  11. Propyl Gallate
  12. Trisodium Ethylenediamine Disuccinate
  13. Dimethyl Isosorbide
  14. Lactic Acid
  15. Salicylic Acid
  16. Dehydroacetic Acid
  17. Benzyl Alcohol
  18. Phenoxyethanol

Only in The 6 Peptide Skin Booster Serum · 36

  1. Dipropylene Glycol
  2. Niacinamide
  3. Acetyl Hexapeptide-8
  4. Copper Tripeptide-1
  5. Sh-Polypeptide-121
  6. Dipeptide Diaminobutyroyl Benzylamide Diacetate
  7. Oligopeptide-68
  8. Palmitoyl Tripeptide-8
  9. Allantoin
  10. Sodium Hyaluronate
  11. Acetyl Glucosamine
  12. Serine
  13. Alanine
  14. Glycine
  15. Threonine
  16. Arginine
  17. Proline
  18. Betaine
  19. Sodium PCA
  20. Sodium Lactate
  21. PCA
  22. Glutamic Acid
  23. Lysine HCL
  24. Tocopherol
  25. Dextran
  26. Glycine Soja (Soybean) Oil
  27. Hydrogenated Lecithin
  28. Ammonium Acryloyldimethyltaurate/VP Copolymer
  29. Butylene Glycol
  30. Adenosine
  31. Polyquaternium-51
  32. Disodium EDTA
  33. Citric Acid
  34. T-Butyl Alcohol
  35. Potassium Sorbate
  36. Sodium Oleate

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