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No.5+ Glutathione Vitamin Concentrated Serum
Serum · 30 ml · $0.60/ml
Numbuzin No.5+ Glutathione Vitamin Concentrated Serum is a brightening serum formulated with glutathione and vitamin C to hydrate and even skin tone appearance.
Currently sold at 3 retailers selling to US shoppers, from $18.00 (cheapest: Olive Young US) to $20.80. Average US price $19.60. Prices checked October 5, 2026.
Best price right now
$18.00
$0.60 per ml
Checked today
at Olive Young US
$2.40 less than the typical seller (12%).
Also available at
Now $18.00 at Olive Young US — typically $7–$17 over the 60 days we've tracked it; lowest we've seen: $18.00.
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Prices last checked today · across 3 retailers
Prices can change between checks — confirm the final price on the retailer's site before buying.
Big retailers
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Price history
What this serum has actually cost
We check every authenticated seller daily; each point is the lowest price we found that day.
The best total right now from an authorized, authenticity-checked seller of numbuzin No.5+ Glutathione Vitamin Concentrated Serum is $18.00 at Olive Young US — checked Oct 5, 2026. We rank on price plus shipping, and show what each price does and does not include. We never take payment to rank.
Skin compatibility
Will this suit your skin?
We run the ingredient list we hold against three curated reference lists. Skin is personal — these are notes to help you decide, not rules. Pregnancy questions belong with your doctor, and if we don't have a full ingredient list we say so instead of guessing.
Transparency
What's actually in it
Key active
Niacinamide
5% (50,000ppm)
Brightening and barrier support
Key active
Tranexamic Acid
4% (40,000ppm)
Reduces pigmentation and dark spots
Key active
3-O-Ethyl Ascorbic Acid
0.2% (2,000ppm)
Stable vitamin C brightening
Concentrations as stated by the brand — we never estimate them from the INCI order.
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Answers