Isntree Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml vs Daily Smoothing Treatment with 5% AHA

Shared ingredients· none here

Product facts and full ingredient lists side by side

on 2+ labelsonly on this labelnot on this labelIngredient	Recommended Isntree Isntree Hyper Acid 4 (AHA BHA PHA LAH) 30 Serum 20ml $26.00 $26.00 at Kbeautymakeup ↗Save	Paula's Choice Daily Smoothing Treatment with 5% AHA $37.00 Save
Basics
Type & size	Exfoliant · size not on the record	Exfoliant · size not on the record
Brand origindiffers	Korean	American
Offers
Where to buydiffers	$26.00 · Kbeautymakeup	Not recorded
Formula
Key activesdiffers	lactic acid, glycolic acid, niacinamide, salicylic acid, allantoin	glycolic acid, salicylic acid, allantoin
Free ofdiffers	fragrance-free, sulfate-free, alcohol-free, paraben-free, silicone-free	fragrance-free, sulfate-free, alcohol-free, paraben-free
Heads-up	pregnancy caution · photosensitizing · fungal-acne triggerPore data not yet reviewed	pregnancy caution · photosensitizing · fungal-acne triggerPore 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 · 30 ingredients
Key actives · 2
aha exfoliant (gentle)	yes	no
vitamin b3	yes	no
Rest of the labels · 40
1,2-hexanediol	yes	no
a silicone	no	yes
acacia senegal gum	yes	no
bisabolol	no	yes
c12-15 alkyl benzoate	no	yes
c13-14 isoparaffin	no	yes
capryloyl salicylic acid Pregnancy: caution	yes	no
caprylyl glycol	no	yes
charcoal powder	yes	no
citric acid	yes	no
cyclohexasiloxane	no	yes
cyclopentasiloxane	no	yes
diethoxyethyl succinate	yes	no
dimethiconol	no	yes
disodium lauriminodipropionate tocopheryl phosphates	no	yes
epigallocatechin gallate	no	yes
fatty alcohol (non-drying)	no	yes
gluconolactone	yes	no
glycerin	yes	no
glyceryl caprylate	yes	no
hexylene glycol	no	yes
hydroxypropyl methylcellulose	yes	no
methylpropanediol	yes	no
peat water	yes	no
peg-10 phytosterol	no	yes
peg-40 stearate Possible fungal-acne trigger	no	yes
phenoxyethanol	no	yes
polyacrylamide	no	yes
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
ppg-14 butyl ether	no	yes
sorbitan stearate Possible fungal-acne trigger	no	yes
tetrahydrobisdemethoxydiferuloylmethane	no	yes
tetrahydrodemethoxydiferuloylmethane	no	yes
tetrahydrodiferuloylmethane	no	yes
tribehenin	no	yes
vanilla planifolia fruit extract	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

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.