Some By Mi AHA.BHA.PHA 30 Days Miracle Serum vs COSRX BHA Blackhead Power Liquid
Same shelf, different answers — here's the whole picture in one table. Click either product for full ingredient decode, skin-twin reviews and every retailer's landed cost.
Some By Mi — AHA.BHA.PHA 30 Days Miracle SerumFull breakdown →
COSRX — BHA Blackhead Power LiquidFull breakdown →
| Some By Mi AHA.BHA.PHA 30 Days Miracle Serum | COSRX BHA Blackhead Power Liquid | |
|---|---|---|
| Step | Serum | Serum |
| Price | $28.14 | $25 |
| Best landed cost | $39.34 | $25 |
| Rating | ★ 4.7 (61) | ★ 4.5 (5,600) |
| Evidence grade | B | A |
| Korea signal | — | #9 serum · Olive Young Korea |
| Hero ingredients | Tea tree, AHA (glycolic/lactic), BHA (salicylic), Centella (cica) | BHA (salicylic), Niacinamide |
| Best for | Acne, Texture, Pores & Oil | Pores & Oil, Acne, Texture |
| Skin types | Oily, Combination | Oily, Combination, Normal |
| Texture | light | light |
| Tone note | All tones | All tones |
| Fragrance-free | ✗ | ✓ |
| Fungal-acne safe | ✗ | ✓ |
| US stock | ✗ import only | ✓ |
Our read: COSRX BHA Blackhead Power Liquid carries the stronger evidence grade (A); COSRX BHA Blackhead Power Liquid wins on landed cost. If your concerns match both, evidence is the tiebreaker we'd use.
Prices and rankings are seed data pending weekly verification. Take the 60-second quiz and both products get a personal match score on their pages.