COSRX AHA 7 Whitehead Power Liquid vs Numbuzin No.3 Skin Softening 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.
COSRX — AHA 7 Whitehead Power LiquidFull breakdown →
Numbuzin — No.3 Skin Softening SerumFull breakdown →
| COSRX AHA 7 Whitehead Power Liquid | Numbuzin No.3 Skin Softening Serum | |
|---|---|---|
| Step | Serum | Serum |
| Price | $25 | $26 |
| Best landed cost | $25 | $14 |
| Rating | ★ 4.4 (5,100) | ★ 4.5 (3,900) |
| Evidence grade | A | B |
| Korea signal | #23 serum · Olive Young Korea (seed) | #5 serum · Olive Young Korea |
| Hero ingredients | AHA (glycolic/lactic) | Bifida ferment, Galactomyces ferment, Niacinamide |
| Best for | Texture, Dullness | Texture, Dullness, Aging |
| Skin types | Oily, Combination, Normal | Dry, Normal, Combination |
| Texture | light | light |
| Tone note | All tones | All tones |
| Fragrance-free | ✓ | ✓ |
| Fungal-acne safe | ✓ | ✗ |
| US stock | ✓ | ✓ |
Our read: COSRX AHA 7 Whitehead Power Liquid carries the stronger evidence grade (A); Numbuzin No.3 Skin Softening Serum 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.