Brand Comparison
Biologi vs COSRX
A head-to-head comparison of two popular K-beauty brands. Which one is right for your skin?
Our Pick
COSRX
Higher editor rating (9 vs 8)
Biologi
Biologi's serums are unusual: single-plant-extract formulas with no preservatives, no emulsifiers, and no water — just the plant's own liquid, extracted cold. The Bf Bakuchiol + Finger Lime Cucumber Serum is a genuinely novel product. Short shelf life is the honest trade-off.
Pros
- ✓ Single-ingredient focus
- ✓ No preservatives or fillers
- ✓ Strong native-Australian sourcing
Cons
- ✗ Short shelf life (60-90 days open)
- ✗ Premium pricing
- ✗ Small range
COSRX
The gateway brand for most people entering K-beauty, and for good reason. COSRX consistently delivers effective, no-frills products at prices that make most Western alternatives look overpriced. Their snail mucin line and BHA products are genuine category leaders. They rarely innovate, but they execute the basics exceptionally well.
Pros
- ✓ Outstanding value across the entire range
- ✓ Short, transparent ingredient lists
- ✓ Consistently effective formulations
- ✓ Widely available globally
Cons
- ✗ Packaging is utilitarian, not luxurious
- ✗ Rarely pushes boundaries with new ingredients
- ✗ Some products have a faint tea tree scent
