TIAM vs VT Cosmetics — side by side, no bias.
Our pick
Reedle Shot 100
9/10 · VT Cosmetics
| Vita B3 Source | Reedle Shot 100 | |
|---|---|---|
| Brand | TIAM | VT Cosmetics |
| Category | serum | serum |
| Editor Rating | 8.5/10 | 9/10 ★ |
| Category | serum | serum |
| Texture | Lightweight water-serum | Thick, almost gritty serum with fine microneedle spicules you can feel on application |
| Finish | Matte absorbed | smooth, slightly tingling, refreshed |
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| Verdict | TIAM's brightening hero and the K-beauty answer to The Ordinary Niacinamide 10% + Zinc 1% — but with alpha-arbutin instead of zinc for a more targeted melanin-inhibiting angle. At 10% niacinamide + 2% alpha-arbutin, this is a serious clinical-concentration dark spot serum at a budget Korean price. The My Signature C Source's quieter, more niacinamide-forward sibling. | At-home microneedling in a bottle. The spicules are made from freshwater sponges and feel like tiny prickles as you massage them in — the sensation is alarming the first time but completely normal. Over 4-8 weeks, it genuinely improves texture, reduces pore visibility, and smooths scarring. Start with the 100 concentration before graduating to 300 or 700. |
