iUNIK vs TIRTIR — side by side, no bias.
Our pick
Beta Glucan Power Moisture Serum
9/10 · iUNIK
| Beta Glucan Power Moisture Serum | Mask Fit Azelaic Acid 12% Serum | |
|---|---|---|
| Brand | iUNIK | TIRTIR |
| Category | serum | serum |
| Editor Rating | 9/10 ★ | 8.3/10 |
| Category | serum | serum |
| Texture | Slightly viscous but watery serum that absorbs cleanly | Lightweight, slightly milky serum |
| Finish | calm, hydrated without shine | Matte, calm, refined |
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| Verdict | iUNIK signature product and one of the best-kept secrets in sensitive-skin K-beauty. 70% beta-glucan — a powerhouse humectant and soothing agent — combined with a minimalist supporting cast. The result is a serum that hydrates like hyaluronic acid but also calms reactive skin the way centella does. Cult favorite for a reason. | TIRTIR finally gives the K-beauty world a proper azelaic acid serum — and at 12%, it's stronger than most OTC options. Azelaic acid is the dermatologist-favorite multi-tasker: anti-inflammatory, anti-bacterial, melanin-inhibiting, and sebum-regulating, all without the irritation of retinol or the purging of BHA. Zinc PCA controls oil, panthenol and ceramides keep the barrier intact, and the milky texture somehow makes 12% azelaic acid feel comfortable rather than clinical. If you've been importing prescription azelaic acid for rosacea or hormonal acne, this $25 serum might replace it. |
