Skin Quiz Dupe Finder Starter Routine Blog Ingredients About

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Personalized Korean skincare routines, curated through clean ingredient science.

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Disclaimer: Recommendations are for informational purposes only and do not constitute medical advice. Consult a dermatologist before starting any new skincare routine.

Serum Comparison

The Vitamin C 23 Serum
vsNo.5 Vitamin Concentrated Serum

COSRX

The Vitamin C 23 Serum

Key Ingredients

Ascorbyl Glucoside • Vitamin C • Hyaluronic Acid

Skin Types

OilyDryCombinationNormal

Goals Targeted

Glass SkinClearing

Price Tier

Value

numbuzin

No.5 Vitamin Concentrated Serum

Key Ingredients

Niacinamide • Tranexamic Acid • Glutathione • Vitamin C • Panthenol

Skin Types

OilyDryCombinationNormal

Goals Targeted

ClearingGlass Skin

Price Tier

Mid-Tier

The Climate Verdict

Humid Climates

Tie / Equal Setup

Dry Climates

Tie / Equal Setup

Variable Climates

Tie / Equal Setup