Isntree Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml vs CosRx, AHA BHA Vitamin C Daily Toner, 5.07 fl oz (150 ml)

Isntree Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml and CosRx, AHA BHA Vitamin C Daily Toner, 5.07 fl oz (150 ml) share 6 parsed ingredients. Differences highlighted below.

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Shared formula

18%

Ingredients in every formula

6in both formulas

Key actives unique to one formula

4unique actives

Ingredient rows compared

33rows compared

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

The formulas, row by row

33 ingredients across 2 labels

Differences only(27 of 33 rows)

Shared ingredients· none here

Product facts and full ingredient lists side by side

on 2+ labelsonly on this labelnot on this labelIngredient	Isntree Isntree Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml $26.00 $26.00 at Kbeautymakeup ↗Save	Recommended COSRX CosRx, AHA BHA Vitamin C Daily Toner, 5.07 fl oz (150 ml) $15.79 Save
Basics
Type & size	Exfoliant · size not on the record	Exfoliant · size not on the record
Brand origin	Korean	Korean
Offers
Where to buydiffers	$26.00 · Kbeautymakeup	Not recorded
Availabilitydiffers	Not recorded	in stock
Formula
Key activesdiffers	lactic acid, glycolic acid, niacinamide, salicylic acid, allantoin	niacinamide, glycolic acid, allantoin, panthenol, ascorbyl glucoside
Free of	fragrance-free, sulfate-free, alcohol-free, paraben-free, silicone-free	fragrance-free, sulfate-free, alcohol-free, paraben-free, silicone-free
Heads-updiffers	pregnancy caution · photosensitizing · fungal-acne triggerPore data not yet reviewed	pregnancy caution · photosensitizingPore 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 · 26 ingredients	Fully parsed · 13 ingredients
Key actives · 4
aha exfoliant (gentle)	yes	no
ascorbyl glucoside Pregnancy: generally fine	no	yes
bha exfoliant	yes	no
pro-vitamin b5	no	yes
Rest of the labels · 23
acacia senegal gum	yes	no
adenosine	no	yes
betaine salicylate Pregnancy: caution	no	yes
capryloyl salicylic acid Pregnancy: caution	yes	no
charcoal powder	yes	no
citric acid	yes	no
diethoxyethyl succinate	yes	no
disodium edta	yes	no
ethyl hexanediol	no	yes
ethylhexylglycerin	yes	no
gluconolactone	yes	no
glycerin	yes	no
glyceryl caprylate	yes	no
hydroxypropyl methylcellulose	yes	no
hylocereus undatus fruit extract	no	yes
methylpropanediol	yes	no
peat water	yes	no
polyglyceryl-10 laurate Possible fungal-acne trigger	yes	no
polyglyceryl-10 myristate Possible fungal-acne trigger	yes	no
potassium hydroxide	yes	no
potassium sorbate	yes	no
sodium lactate	no	yes
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 Isntree if you want AHA exfoliant (gentle) in the formula.

Choose COSRX if you want Pro-vitamin B5 in the formula.

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.