Cos De BAHA Azelaic Acid 10% Serum vs isoi Bulgarian Rose Blemish Care 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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Cos De BAHA — Azelaic Acid 10% SerumFull breakdown →
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isoi — Bulgarian Rose Blemish Care SerumFull breakdown →
| Cos De BAHA Azelaic Acid 10% Serum | isoi Bulgarian Rose Blemish Care Serum | |
|---|---|---|
| Step | Serum | Serum |
| Price | $16 | $38 |
| Best landed cost | $16 | $41.50 |
| Rating | ★ 4.3 (2,400) | ★ 4.5 (3,100) |
| Evidence grade | B | B |
| Korea signal | #49 serum · Olive Young Korea (seed) | #15 serum · Olive Young Korea (seed) |
| Hero ingredients | Azelaic acid, Niacinamide | Licorice root, Niacinamide |
| Best for | Redness / Rosacea-prone, Acne, Dark spots (PIH) | Dark spots (PIH), Acne, Sensitivity |
| Skin types | Sensitive, Oily, Combination, Normal | Sensitive, Normal, Combination, Dry |
| Texture | light | light |
| Tone note | All tones | All tones |
| Fragrance-free | ✓ | ✗ |
| Fungal-acne safe | ✓ | ✗ |
| US stock | ✓ | ✗ import only |
Our read: Evidence grades are equal (B) — so let fit decide: check the skin-type rows above, and if both fit, Cos De BAHA Azelaic Acid 10% Serum is the cheaper landed cost over isoi Bulgarian Rose Blemish Care Serum.
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.