Brand Comparison
Biologi vs Mediheal
A head-to-head comparison of two popular K-beauty brands. Which one is right for your skin?
Our Pick
Mediheal
Higher editor rating (9 vs 8)
Biologi
Biologi's serums are unusual: single-plant-extract formulas with no preservatives, no emulsifiers, and no water โ 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
- โ Single-ingredient focus
- โ No preservatives or fillers
- โ Strong native-Australian sourcing
Cons
- โ Short shelf life (60-90 days open)
- โ Premium pricing
- โ Small range
Mediheal
Mediheal is the top-selling skincare brand at Olive Young for two years running โ beating more than 3,000 brands. Their sheet masks created the modern sheet mask category, and their Madecassoside Blemish Pad saw 820% year-over-year growth. If you only add one new sheet mask brand to your routine, make it this one.
Pros
- โ #1 selling brand at Olive Young
- โ Clinical-grade sheet mask formulations
- โ The Madecassoside line is category-defining
- โ Affordable daily-use pricing
Cons
- โ Sheet masks are single-use and generate waste
- โ Some older lines contain fragrance
- โ Huge catalog can be overwhelming









