COSRX AHA 7 Whitehead Power Liquid vs Some By Mi AHA.BHA.PHA 30 Days Miracle Serum
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.
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COSRX — AHA 7 Whitehead Power LiquidFull breakdown →
Some By Mi — AHA.BHA.PHA 30 Days Miracle SerumFull breakdown →
| COSRX AHA 7 Whitehead Power Liquid | Some By Mi AHA.BHA.PHA 30 Days Miracle Serum | |
|---|---|---|
| Step | Serum | Serum |
| Price | $25 | $28.14 |
| Best landed cost | $25 | $39.34 |
| Rating | ★ 4.4 (5,100) | ★ 4.7 (61) |
| Evidence grade | A | B |
| Korea signal | #23 serum · Olive Young Korea (seed) | — |
| Hero ingredients | AHA (glycolic/lactic) | Tea tree, AHA (glycolic/lactic), BHA (salicylic), Centella (cica) |
| Best for | Texture, Dullness | Acne, Texture, Pores & Oil |
| Skin types | Oily, Combination, Normal | Oily, Combination |
| Texture | light | light |
| Tone note | All tones | All tones |
| Fragrance-free | ✓ | ✗ |
| Fungal-acne safe | ✓ | ✗ |
| US stock | ✓ | ✗ import only |
Our read: COSRX AHA 7 Whitehead Power Liquid carries the stronger evidence grade (A); COSRX AHA 7 Whitehead 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.