★ Best Pick
$6〜$6
Best Value / Best Starting Point: The Ordinary's 10% Niacinamide + 1% Zinc is the reference product that established mass-market niacinamide pricing — at $6 for 30 mL, it has made a previously luxury-adjacent ingredient accessible globally. The formula is intentionally minimal: niacinamide, zinc PCA, a preservation system, and little else.
This is a companion discussion topic for the original entry at https://pickly.blog/en/articles/best-niacinamide-serum-2026/