It's Skin Power 10 Formula PO Effector Pore Lupin 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.
It's Skin — Power 10 Formula PO Effector Pore LupinFull breakdown →
COSRX — BHA Blackhead Power LiquidFull breakdown →
| It's Skin Power 10 Formula PO Effector Pore Lupin | COSRX BHA Blackhead Power Liquid | |
|---|---|---|
| Step | Serum | Serum |
| Price | $17 | $25 |
| Best landed cost | $22.99 | $25 |
| Rating | ★ 4.2 (450) | ★ 4.5 (5,600) |
| Evidence grade | C | A |
| Korea signal | — | #9 serum · Olive Young Korea |
| Hero ingredients | — | BHA (salicylic), Niacinamide |
| Best for | Pores & Oil, Texture | 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 | ✓ | ✓ |
Our read: COSRX BHA Blackhead Power Liquid carries the stronger evidence grade (A); It's Skin Power 10 Formula PO Effector Pore Lupin wins on landed cost. If your concerns match both, evidence is the tiebreaker we'd use.
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