Isntree Hyper Retinol EX 1.0 vs Dr. Althea 0.1% Gentle Retinol 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.
Isntree — Hyper Retinol EX 1.0Full breakdown →
Dr. Althea — 0.1% Gentle Retinol SerumFull breakdown →
| Isntree Hyper Retinol EX 1.0 | Dr. Althea 0.1% Gentle Retinol Serum | |
|---|---|---|
| Step | Serum | Serum |
| Price | $28 | $22 |
| Best landed cost | $28 | $26.99 |
| Rating | ★ 4.4 (2,200) | ★ 4.5 (340) |
| Evidence grade | B | B |
| Korea signal | #16 serum · Olive Young Korea (seed) | — |
| Hero ingredients | Retinol, Adenosine | Retinol |
| Best for | Aging, Texture | Aging, Texture |
| Skin types | Normal, Combination, Dry | Oily, Dry, Combination, Normal |
| Texture | light | light |
| Tone note | All tones | All tones |
| Fragrance-free | ✓ | ✗ |
| Fungal-acne safe | ✗ | ✗ |
| US stock | ✓ | ✓ |
Our read: Evidence grades are equal (B) — so let fit decide: check the skin-type rows above, and if both fit, Dr. Althea 0.1% Gentle Retinol Serum is the cheaper landed cost over Isntree Hyper Retinol EX 1.0.
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.