numbuzin No.5+ Vitamin Concentrated Serum 30ml vs [K-SECRET] Seoul 1988 Glow Serum: Niacinamide 15% + Yuja 30ml

numbuzin No.5+ Vitamin Concentrated Serum 30ml and [K-SECRET] Seoul 1988 Glow Serum: Niacinamide 15% + Yuja 30ml share 21 parsed ingredients. Differences highlighted below.

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• 
  numbuzin No.5+ Vitamin Concentrated Serum 30ml
• 
  [K-SECRET] Seoul 1988 Glow Serum: Niacinamide 15% + Yuja 30ml

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Full ingredient comparisonLabels, evidence & retailer offers

How much do the ingredient lists overlap?

40%

Ingredients in every formula

21in both formulas

Key actives unique to one formula

7unique actives

Ingredient rows compared

52rows compared

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

How do the ingredient lists differ?

52 ingredients across 2 labels

Differences only(31 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 numbuzin numbuzin No.5+ Vitamin Concentrated Serum 30ml $49.60 Reference price Save	K-secret [K-SECRET] Seoul 1988 Glow Serum: Niacinamide 15% + Yuja 30ml $31.90 $31.90 at Ballagrio ↗Save
Basics
Type & size	Serum · size not on the record	Serum · size not on the record
Brand origindiffers	Korean	Not recorded
Offers
Where to buydiffers	No offers listed	$31.90 · Ballagrio
Availabilitydiffers	No offers listed	In stock
Formula
Key activesdiffers	niacinamide, panthenol, tranexamic acid, alpha-arbutin, sodium hyaluronate, allantoin, ceramide np, ascorbic acid, ascorbyl glucoside	niacinamide, squalane, panthenol, sodium hyaluronate, tranexamic acid, sodium ascorbyl phosphate
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	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 · 41 ingredients	Fully parsed · 32 ingredients
Key actives · 7
allantoin	yes	no
alpha-arbutin Pregnancy: caution	yes	no
ascorbyl glucoside Pregnancy: generally fine	yes	no
ceramide np	yes	no
sodium ascorbyl phosphate Pregnancy: generally fine	no	yes
squalane	no	yes
vitamin c	yes	no
Rest of the labels · 24
1,2-hexanediol	yes	no
agar	no	yes
behenyl alcohol	yes	no
bifida ferment lysate	yes	no
bisabolol	yes	no
chondrus crispus extract	yes	no
citrus junos fruit oil	no	yes
dipotassium glycyrrhizate	yes	no
disodium edta	yes	no
gellan gum	no	yes
hydrogenated polydecene	no	yes
hydroxydecyl ubiquinone	no	yes
hydroxypropyl cyclodextrin	yes	no
macadamia ternifolia seed oil	no	yes
neopentyl glycol dicaprate	yes	no
polyglyceryl-10 laurate Possible fungal-acne trigger	no	yes
polyglyceryl-3 methylglucose distearate Possible fungal-acne trigger	no	yes
potassium hydroxide	yes	no
sodium phytate	no	yes
sorbitol	yes	no
thioctic acid	yes	no
tocopheryl acetate	yes	no
ubiquinone	yes	no
vaccinium vitis-idaea fruit extract	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 numbuzin if you want Alpha-Arbutin in the formula.

Choose K-secret if you want Squalane 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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• numbuzin No.5+ Vitamin Concentrated SerumVSDr.Althea Vitamin C Boosting Serum 30ml

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