iUNIK vs Klairs — side by side, no bias.
Our pick
Beta Glucan Power Moisture Serum
9/10 · iUNIK
| Beta Glucan Power Moisture Serum | Freshly Juiced Vitamin Drop | |
|---|---|---|
| Brand | iUNIK | Klairs |
| Category | serum | serum |
| Editor Rating | 9/10 ★ | 8.2/10 |
| Category | serum | serum |
| Texture | Slightly viscous but watery serum that absorbs cleanly | Watery serum |
| Finish | calm, hydrated without shine | Brightened, calmed |
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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. | Klairs' L-ascorbic acid hero — 5% pure ascorbic acid (rather than a derivative) buffered with centella asiatica + a stack of Korean herbal extracts (Persicaria, Magnolia, Quercus, etc.). Sits as a gentler-onboarding alternative to The Ordinary 23% Vitamin C or SkinCeuticals C E Ferulic — beginners who don't tolerate higher concentrations land here, while still getting the L-ascorbic free-form pathway rather than the ascorbyl glucoside compromise. |
