Numbuzin No.5 Vitamin Concentrated Serum: dupes & alternatives

Looking for a dupe or alternative to Numbuzin No.5 Vitamin Concentrated Serum? We matched 6 Korean serums by shared active ingredients (vitamin-c, niacinamide, glutathione), target concerns and texture — 6 of them come in cheaper once import duties are included, starting with Mary&May Tranexamic Acid + Glutathione Serum (about $9 less).

Numbuzin No.5 Vitamin Concentrated Serum
Original Numbuzin No.5 Vitamin Concentrated Serum
Vitamin C, Niacinamide, Glutathione · light
$28
landed total

Closest Korean alternatives

1
Goodal Green Tangerine Vita C Dark Spot Serum
Goodal Green Tangerine Vita C Dark Spot Serum
Shares vitamin-c, niacinamide
$20
$8 cheaper
2
Jumiso All Day Vitamin Brightening & Balancing Facial Serum
Jumiso All Day Vitamin Brightening & Balancing Facial Serum
Shares vitamin-c, niacinamide · fragrance-free
$22
$6 cheaper
3
I
Isntree C-Niacin Toning Ampoule
Shares vitamin-c, niacinamide · fragrance-free
$25
$3 cheaper
4
M
Mary&May Tranexamic Acid + Glutathione Serum
Shares glutathione, niacinamide · FA-safe · fragrance-free
$19
$9 cheaper
5
Medicube Deep Vita C Ampoule
Medicube Deep Vita C Ampoule
Shares vitamin-c, niacinamide · fragrance-free
$25
$3 cheaper
6
T
Torriden CELLMAZING Vita-C Brightening Ampoule
Shares vitamin-c, niacinamide · fragrance-free
$25
$3 cheaper

Common questions

What is a good dupe for Numbuzin No.5 Vitamin Concentrated Serum?

We rank Goodal Green Tangerine Vita C Dark Spot Serum as the closest match — same serum step, overlapping active ingredients and target concerns. It's one of 6 alternatives on this page, each shown with its duties-included price so you can compare the true cost.

How do you decide what counts as a dupe?

We score every other Korean serum by shared hero ingredients, shared skin concerns and matching texture — the same signals on each product page. These are honest ingredient-and-use alternatives, not claims that any two products are identical.

Is there a cheaper alternative?

Yes — 6 of the 6 come in cheaper than Numbuzin No.5 Vitamin Concentrated Serum once estimated import duties are included. Every price on this page is the landed total (product + shipping + duty), not just the sticker price.

Alternatives are matched by ingredient and use, not claims of identical formulation. Prices include estimated import duties and are seed data pending verification. Back to No.5 Vitamin Concentrated Serum.