Numbuzin No.3 Skin Brightening Serum — a K-beauty alternative to Olay Luminous / Murad brightening serum
Looking for a Korean alternative to Olay Luminous / Murad brightening serum? Tone-evening brightening serum
The K-beauty alternative
≈ Multi-brightener (niacinamide + vitamin-C derivatives) — Both target dull, uneven tone with a stack of brighteners. Numbuzin's No.3 layers niacinamide and vitamin-C derivatives in a glow-focused serum that went viral for visibly brighter-looking skin.
Olay Luminous / Murad brightening serum ($35–$72) vs the Korean pick — similar hero ingredients, a fraction of the price.
Explore more K-beauty guides →🙋 People also ask
What is the difference between essence and serum?
In Korean skincare, essence is typically a thinner, hydration-focused layer that preps skin, while serum is more concentrated with targeted actives like vitamin C or niacinamide. Essence usually comes first; serum follows. The line between them blurs, and not every routine needs both.
What is the difference between essence, serum and ampoule?
Essence is the lightest and most hydration-focused, serum is more concentrated and targeted, and ampoule is the most concentrated of the three. The boundaries are marketing convention, not regulated definitions.
✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-10.
General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.