[Pyunkang Yul] Brightening Blemish Care Serum 30ml vs CosRx, Hydrium, Triple Hyaluronic Moisture Ampoule, 1.35 fl oz (40 ml)

[Pyunkang Yul] Brightening Blemish Care Serum 30ml and CosRx, Hydrium, Triple Hyaluronic Moisture Ampoule, 1.35 fl oz (40 ml) share 11 parsed ingredients. Differences highlighted below.

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Shared formula

31%

Ingredients in every formula

11in both formulas

Key actives unique to one formula

4unique actives

Ingredient rows compared

36rows compared

From the parsed labels — rows on every label over all compared rows.

The formulas, row by row

36 ingredients across 2 labels

Differences only(25 of 36 rows)

Shared ingredients· none here

Product facts and full ingredient lists side by side

on 2+ labelsonly on this labelnot on this labelIngredient	Recommended Pyunkang Yul [Pyunkang Yul] Brightening Blemish Care Serum 30ml $39.00 $39.00 at Kbeautymakeup ↗Save	COSRX CosRx, Hydrium, Triple Hyaluronic Moisture Ampoule, 1.35 fl oz (40 ml) $19.27 Save
Basics
Type & size	Serum · size not on the record	Serum · size not on the record
Brand origin	Korean	Korean
Offers
Where to buydiffers	$39.00 · Kbeautymakeup	Not recorded
Availabilitydiffers	Not recorded	in stock
Formula
Key activesdiffers	niacinamide, panthenol, allantoin, sodium hyaluronate, hyaluronic acid, ascorbic acid	panthenol, hyaluronic acid
Free of	fragrance-free, sulfate-free, alcohol-free, paraben-free, silicone-free	fragrance-free, sulfate-free, alcohol-free, paraben-free, silicone-free
Heads-updiffers	fungal-acne trigger · high pore-rating flag	None flagged from the checks we ranPore data not yet reviewed
Fit & community
Rating	No reviews yet	No reviews yet
Best for	Not recorded	Not recorded
Data quality
Label coveragediffers	Fully parsed · 34 ingredients	Fully parsed · 13 ingredients
Key actives · 4
allantoin	yes	no
hyaluronic acid (salt form) Pregnancy: generally fine	yes	no
vitamin b3	yes	no
vitamin c	yes	no
Rest of the labels · 21
adenosine	yes	no
betaine	yes	no
broussonetia kazinoki root extract	yes	no
caprylyl glycol	yes	no
carbomer	no	yes
cetyl ethylhexanoate	yes	no
chrysanthemum morifolium flower extract	yes	no
citric acid	yes	no
disodium edta	yes	no
ethylhexyl palmitate Possible fungal-acne trigger	yes	no
glycereth-25 pca isostearate Possible fungal-acne trigger	yes	no
hydroxypropyltrimonium hyaluronate Pregnancy: generally fine	yes	no
lactobionic acid	no	yes
methylpropanediol	yes	no
pearl extract	yes	no
pentylene glycol	yes	no
polyglyceryl-10 myristate Possible fungal-acne trigger	yes	no
sodium acetylated hyaluronate Pregnancy: generally fine	yes	no
sodium citrate	yes	no
sodium hyaluronate crosspolymer Pregnancy: generally fine	yes	no
xanthan gum	yes	no

Rows come from parsed labels and live offers. Where a label isn’t fully captured, we say so instead of guessing.

The bottom line

Choose Pyunkang Yul if you want Vitamin B3 in the formula.

Choose COSRX if you want a comparable formula for $19.73 less.

Both lines come from the parsed labels and the prices on this page — neither product is the reference, and neither is called the better one.

This is not medical advice.

Focus on an effect

Focus on an effect

All ingredientsBrighten & fade dark spotsClear breakoutsSmooth fine linesHydrate & plumpCalm rednessRefine textureRepair & strengthenProtect from sunGo

All ingredients

Brighten & fade dark spotsClear breakoutsSmooth fine linesHydrate & plump

Calm rednessRefine textureRepair & strengthenProtect from sun

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Suggested from shared ingredients on the parsed labels — each pair opens as its own comparison.