numbuzin No.5+ Glutathione Vitamin Concentrated Serum, 30ml Review | SkinSourcer
Skinsourcer

The Shelf · The Best Skincare Under $25 We'd Buy at Twice the Price

numbuzin No.5+ Glutathione Vitamin Concentrated Serum, 30ml
No. 12 in Edit 005

numbuzin No.5+ Glutathione Vitamin Concentrated Serum, 30ml

Serums South Korea Approx. $20

Glutathione is on the front of the bottle, but it is the back that earned the place. Niacinamide sits third on the ingredient list, then tranexamic acid, then an ethylated vitamin C and alpha-arbutin further down, which is four of the actives this page is organised around in one twenty-dollar serum. That is the test the Dark Spot shelf sets, a named pigment-targeting reason to be here, and this one names four.

Shop at Olive Young US

Affiliate link. Price and availability are set by Olive Young US.

Why we like the No.5+ Glutathione Vitamin Concentrated Serum, 30ml

  • Four tone actives on one label
  • Twenty dollars
  • Light enough to wear under sunscreen
Texture
A light lotion-weight serum with a soft, non-sticky finish
Key ingredients
Niacinamide, third on the label · Tranexamic acid · 3-O-ethyl ascorbic acid · Alpha-arbutin · Glutathione
Fragrance
Verify
Skin type
All · Combination · Dull
Best for
The mark a breakout left · Uneven tone under twenty dollars · People who want niacinamide and tranexamic acid in one bottle
Works on
Dark spots · Pigmentation · Dullness
Made in
South Korea
Where to buy
Olive Young US
Price when checked
$20 on 2026-10-13
Listing checked
2026-10-13

Our verdict on the numbuzin No.5+ Glutathione Vitamin Concentrated Serum, 30ml

The budget tone serum that reads well on the back.

Some links below are affiliate links. If you buy through them, SkinSourcer may earn a commission at no additional cost to you. It never changes what we pick or what you pay.

Where the No.5+ Glutathione Vitamin Concentrated Serum, 30ml sits on The Shelf

The Best Skincare Under $25 We'd Buy at Twice the Price Edit 005 · THE UNDER-$25 EDIT The Best Skincare Under $25 We'd Buy at Twice the Price Thirteen formulas where price and quality came apart, mostly in Korea.

The rest of The Best Skincare Under $25 We'd Buy at Twice the Price

Rejuran Turnover Ampoule Rejuran Turnover Ampoule Wellage Real Hyaluronic Blue Ampoule 100 Wellage Real Hyaluronic Blue Ampoule 100 Sungboon Editor Deep Collagen Serum Sungboon Editor Deep Collagen Serum COSRX 3X Hyaluronic Acid Moisture Ampoule COSRX 3X Hyaluronic Acid Moisture Ampoule SKIN1004 Madagascar Centella Ampoule Foam SKIN1004 Madagascar Centella Ampoule Foam Dr. Althea Green Relief Amino Gel Cleanser Dr. Althea Green Relief Amino Gel Cleanser RoC Revive + Glow Gel Cleanser RoC Revive + Glow Gel Cleanser AXIS-Y Biome Resetting Moringa Cleansing Oil AXIS-Y Biome Resetting Moringa Cleansing Oil Mediheal Watermide Toner Pad Mediheal Watermide Toner Pad iUNIK Propolis Vitamin Synergy Serum iUNIK Propolis Vitamin Synergy Serum RoC Retinol Correxion Deep Wrinkle Serum RoC Retinol Correxion Deep Wrinkle Serum numbuzin No.9 NAD+ Retinol Volumetox Eye Cream, 10ml numbuzin No.9 NAD+ Retinol Volumetox Eye Cream, 10ml

Reviewed 2026-10-13. numbuzin No.5+ Glutathione Vitamin Concentrated Serum, 30ml appears in The Best Skincare Under $25 We'd Buy at Twice the Price. Every product on The Shelf is listed in the product index.