A lightweight serum and a dense cream both claim to fade dark spots — they're not interchangeable

Why a thin serum and a dense cream aren't simply "strong" and "stronger" versions of the same thing

A vitamin C serum is formulated to apply early in the routine, on clean skin, delivering antioxidant and brightening action across the whole face quickly and lightly. A dedicated dark-spot cream is formulated with a denser, more occlusive texture meant for sustained contact over specific areas of concern, often used as a heavier treatment layer rather than an all-over daily step — the difference is functional role, not simply potency.

Why combining both addresses more of the pigmentation problem than either alone

Using only the serum covers daily antioxidant defense and gradual all-over brightening, but may under-treat stubborn, localised dark spots that benefit from a denser, longer-contact treatment. Using only the dark-spot cream on specific areas misses the daily antioxidant protection a lightweight serum provides across the whole face. Layering both — serum first, cream targeted to spots — covers more of the actual pigmentation problem than relying on just one.

A practical layering sequence that uses each product for its actual strength

Apply the vitamin C serum first to the entire face on clean skin, allowing full absorption. Follow with the dark-spot cream applied specifically to areas of concern rather than the whole face, where its denser texture and concentrated actives can work directly on the spots that need the most attention. Maintain daily SPF throughout — both treatments lose ground if new UV-triggered pigment outpaces what they're fading.

BENTON Vitamin C Serum 30ml — available on BuyBeautyKorea →

Numbuzin No.5 Vitamin Glutathione Dark Spot Laser Cream 50ml — available on BuyBeautyKorea →