The Alpha-Arbutin 2 Discoloration Care Serum vs RapidLash, RapidLash®, Eyelash Enhancing Serum, 0.1 fl oz (3 ml)

The Alpha-Arbutin 2 Discoloration Care Serum and RapidLash, RapidLash®, Eyelash Enhancing Serum, 0.1 fl oz (3 ml) share 9 parsed ingredients. Differences highlighted below.

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Shared 9The Alpha-Arbutin 2 Discoloration Care Serum only 27RapidLash, RapidLash®, Eyelash Enhancing Serum, 0.1 fl oz (3 ml) only 16

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Shared formula

17%

Ingredients in every formula: 9in both formulas
Key actives unique to one formula: 4unique actives
Ingredient rows compared: 52rows compared

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

The formulas, row by row

52 ingredients across 2 labels

Differences only(43 of 52 rows)

Shared ingredients· none here

Product facts and full ingredient lists side by side
on 2+ labelsonly on this labelnot on this labelIngredient	Recommended COSRX The Alpha-Arbutin 2 Discoloration Care Serum $17.50 $25.00 at Cosrx ↗	RapidLash RapidLash, RapidLash®, Eyelash Enhancing Serum, 0.1 fl oz (3 ml) $34.95
Basics
Type & size	Serum · size not on the record	Serum · size not on the record
Brand origindiffers	Korean	Not recorded
Offers
Where to buydiffers	$25.00 · Cosrx (2 offers)	Not recorded
Availabilitydiffers	Not recorded	in stock
Formula
Key activesdiffers	niacinamide, tranexamic acid, alpha-arbutin, sodium hyaluronate, hyaluronic acid, panthenol, allantoin	sodium hyaluronate, panthenol, allantoin
Free ofdiffers	fragrance-free, sulfate-free, paraben-free	fragrance-free, sulfate-free, paraben-free, silicone-free
Heads-updiffers	pregnancy cautionPore data not yet reviewed	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 · 36 ingredients	Fully parsed · 25 ingredients
Key actives · 4
alpha-arbutin Pregnancy: caution	yes	no
hyaluronic acid Pregnancy: generally fine	yes	no
tranexamic acid	yes	no
vitamin b3	yes	no
Rest of the labels · 39
1,2-hexanediol	yes	no
a silicone	yes	no
acetyl glucosamine	yes	no
arginine	yes	no
biotin	no	yes
chlorphenesin	no	yes
dextrin	yes	no
dicalcium phosphate	no	yes
diethoxyethyl succinate	yes	no
dimethyl isosorbide	yes	no
dipotassium glycyrrhizate	no	yes
ethylhexylglycerin	yes	no
ferulic acid	yes	no
glutathione	yes	no
hydrolyzed glycosaminoglycans	no	yes
hydrolyzed hyaluronic acid Pregnancy: generally fine	yes	no
hydroxyethylcellulose	no	yes
isopropyl cloprostenate	no	yes
madecassoside	yes	no
methyl trimethicone	yes	no
pantethine	no	yes
phenoxyethanol	no	yes
potassium sorbate	no	yes
propanediol	yes	no
rhizobian gum	no	yes
sea water	no	yes
sodium acetylated hyaluronate Pregnancy: generally fine	yes	no
sodium citrate	yes	no
sodium hyaluronate crosspolymer Pregnancy: generally fine	yes	no
sodium metabisulfite	yes	no
sodium methyl stearoyl taurate	yes	no
sodium oleate Possible fungal-acne trigger	no	yes
sodium phosphate	no	yes
sodium polyacryloyldimethyl taurate	yes	no
sorbic acid	no	yes
vitamin e	yes	no
water	yes	no
water	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 COSRX if you want Vitamin B3 in the formula.

Choose RapidLash if you want this formula as listed.

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

All ingredients

Brighten & fade dark spots Clear breakouts Smooth fine lines Hydrate & plump

Calm redness Refine texture Repair & strengthen Protect from sun

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