Dr. Althea 0.1% Gentle Retinol Serum vs IOPE Retinol Expert 0.1%
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.
| Dr. Althea 0.1% Gentle Retinol Serum | IOPE Retinol Expert 0.1% | |
|---|---|---|
| Step | Serum | Serum |
| Price | $22 | $42 |
| Best landed cost | $26.99 | $46.10 |
| Rating | ★ 4.5 (340) | ★ 4.5 (3,400) |
| Evidence grade | B | A |
| Korea signal | — | #8 serum · Olive Young Korea (seed) |
| Hero ingredients | Retinol | Retinol, Adenosine |
| Best for | Aging, Texture | Aging, Texture |
| Skin types | Oily, Dry, Combination, Normal | Normal, Dry, Combination |
| Texture | light | light |
| Tone note | All tones | All tones |
| Fragrance-free | ✗ | ✓ |
| Fungal-acne safe | ✗ | ✗ |
| US stock | ✓ | ✗ import only |
Our read: IOPE Retinol Expert 0.1% carries the stronger evidence grade (A); Dr. Althea 0.1% Gentle Retinol 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.