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COSRX 5 Peptide Ceramide Barrier Comfort Lip Mask

COSRX 5 Peptide Ceramide Barrier Comfort Lip Mask

SkincareMasks / Face Packs

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What the ingredients say

Read from the label order, stated amounts and each ingredient’s clinical evidence

Lactic Acid is in, but its place on the label keeps it at 2.6% or less, short of what studies used.

  • no fragrance

Best-supported ingredient per concern

  • DrynessGlycerinevidence B+below study amount
  • Skin barrierGlycerinevidence Bbelow study amount
  • LinesLactic Acidevidence B-below study amount
  • Dark spotsLactic Acidevidence B-below study amount
  • PoresGluconolactoneevidence Cbelow study amount

Evidence-graded ingredients and how much is in

Glycerinbelow study amount

It comes after a preservative the law caps at 2.8%, so it is at most 2.8% — short of what studies used (3–10%).

Dryness B+ · Skin barrier B

When morning and evening · low irritation

Dimethiconelikely enough

No amount is stated. Judging by products that state an evidence-graded ingredient at this place on the label, the chance it reaches the amount studies used is about 61%.

Skin barrier B · Dryness B-

When morning and evening · low irritation

Ceramide NPin the nameamount unknown

No amount is stated, and studies name no single amount. It sits before the 1% line.

Skin barrier B · Dryness B

When morning and evening · low irritation

Squalanelikely enough

No amount is stated. Judging by 17 products that state it at this place on the label, the chance it reaches the amount studies used is about 86%.

Dryness C

When morning and evening · low irritation

Lactic Acidbelow study amount

It comes after a preservative the law caps at 2.6%, so it is at most 2.6% — short of what studies used (5–10%).

Lines B- · Dark spots B- · Dryness C

When evening · moderate — start every other day

5 more evidence-graded ingredients
Gluconolactonebelow study amount

It comes after a preservative the law caps at 2.9%, so it is at most 2.9% — short of what studies used (4–10%).

Lines C · Dryness C · Pores C

When evening · low irritation

Beta-Glucan37% chance of enough

No amount is stated. Judging by products that state an evidence-graded ingredient at this place on the label, the chance it reaches the amount studies used is about 37%.

Dryness C

When morning and evening · low irritation

Hyaluronic Acidlikely too little

No amount is stated. Judging by 53 products that state it at this place on the label, the chance it reaches the amount studies used is about 12%.

Dryness B · Lines D

When morning and evening · low irritation

Tocopherol23% chance of enough

No amount is stated. Judging by 16 products that state it at this place on the label, the chance it reaches the amount studies used is about 23%.

Lines D

When morning · low irritation

Acetyl Hexapeptide-8in the nameamount unknown

No amount is stated, and studies name no single amount. It sits after the 1% line (usually 1% or less).

Lines D

When morning and evening · low irritation

How this was read

Labels list ingredients above 1% from most to least, then those at 1% or less in any order. A product filed with Korea's MFDS as functional is read as holding the notified amount of its efficacy ingredient when the label carries only one for that effect, and anything listed before an ingredient of known amount as holding at least that much. Amounts in the product name or official description are used only where the label order allows them. Where no amount is stated, the chance of reaching the study amount comes from other products that state the same ingredient at the same place on their labels. Evidence grades were set by reading each ingredient's studies.

A
several randomised trials or a meta-analysis
B
one or two randomised trials
C
uncontrolled or multi-ingredient studies
D
lab work or a record only

A reading of ingredient evidence and the label, not a guarantee that this product works.

Ingredients

Full ingredient list as published on the official product page, in descending order of content.

All 54 ingredients at a glance

By concern

Colours follow each ingredient’s use (CosIng functions); the bar counts names. Not amounts, not a safety score.

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Tap a name to see what it does and the evidence

1IngredientsOverseas official store (US) · Observed 2026-09-23