iUNIK vs TIRTIR — side by side, no bias.
Our pick
Beta Glucan Power Moisture Serum
9/10 · iUNIK
| Beta Glucan Power Moisture Serum | SOS Serum | |
|---|---|---|
| Brand | iUNIK | TIRTIR |
| Category | serum | serum |
| Editor Rating | 9/10 ★ | 8.5/10 |
| Category | serum | serum |
| Texture | Slightly viscous but watery serum that absorbs cleanly | Lightweight gel serum |
| Finish | calm, hydrated without shine | Plump, bouncy, dewy |
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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's hydration rescue in a bottle. Polyglutamic acid holds 10x more moisture than hyaluronic acid, and the brand pairs it with centella and panthenol for a serum that instantly plumps dehydrated, stressed-out skin without any stickiness. The gel texture absorbs in seconds, layers beautifully under makeup, and plays well with actives. At $25, this is the kind of serum that makes you wonder why anyone spends $80 on a hydrating treatment. Vegan, fragrance-free, and so gentle that even post-procedure skin can handle it. |
