numbuzin No.5+ Vitamin Concentrated Serum 30ml vs CosRx, The Vitamin C 13 Serum, 0.67 fl oz (20 ml)

Shared ingredients· none here

Product facts and full ingredient lists side by side

on 2+ labelsonly on this labelnot on this labelIngredient	Recommended numbuzin numbuzin No.5+ Vitamin Concentrated Serum 30ml $49.60 Save	COSRX CosRx, The Vitamin C 13 Serum, 0.67 fl oz (20 ml) $16.80 Save
Basics
Type & size	Serum · size not on the record	Serum · size not on the record
Brand origin	Korean	Korean
Offers
Where to buy	Not recorded	Not recorded
Availabilitydiffers	Not recorded	in stock
Formula
Key activesdiffers	niacinamide, panthenol, tranexamic acid, alpha-arbutin, sodium hyaluronate, allantoin, ceramide np, ascorbic acid, ascorbyl glucoside	ascorbic acid, panthenol, caffeine, sodium hyaluronate, allantoin, squalane, niacinamide
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 cautionPore data not yet reviewed	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 · 41 ingredients	Fully parsed · 22 ingredients
Key actives · 6
alpha-arbutin Pregnancy: caution	yes	no
ascorbyl glucoside Pregnancy: generally fine	yes	no
caffeine	no	yes
ceramide np	yes	no
squalane	no	yes
tranexamic acid	yes	no
Rest of the labels · 31
1,2-hexanediol	yes	no
acetyl glucosamine	no	yes
arginine	no	yes
behenyl alcohol	yes	no
beta-glucan	yes	no
bifida ferment lysate	yes	no
bisabolol	yes	no
carbomer	yes	no
chondrus crispus extract	yes	no
corallina officinalis extract	yes	no
dextrin	no	yes
dipotassium glycyrrhizate	yes	no
dipropylene glycol	no	yes
ethylhexylglycerin	yes	no
gardenia florida fruit extract	no	yes
glycerin	yes	no
hydrogenated lecithin	yes	no
hydroxypropyl cyclodextrin	yes	no
melia azadirachta flower extract	yes	no
melia azadirachta leaf extract	yes	no
neopentyl glycol dicaprate	yes	no
ocimum sanctum leaf extract	yes	no
potassium hydroxide	yes	no
sodium sulfite	no	yes
sorbitol	yes	no
thioctic acid	yes	no
tocopheryl acetate	yes	no
tocotrienols	no	yes
ubiquinone	yes	no
vaccinium vitis-idaea fruit extract	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

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.