numbuzin No.5 Glutathione TXA Advanced Dark Spot Ampoule Concentrate
By Nur → Last verified 10/24/2026
Price checked 10/24/2026
Verified 2026-10-24 on YesStyle: $16.80 for the 10.7 g two-part set ($1.57 per g — a concentrate format, so no per-mL figure is given). Prices change often, so confirm on the retailer's page.
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What we found
Based on how this product compares to others in the serums category, cross-referenced against retailer listings and market data.
Strengths
- + Press-and-mix format: the powder is 100% glutathione (0.7 g), kept separate until first use, which protects it from degrading in the liquid
- + The liquid is TXA-led — tranexamic acid 2nd, glutathione 4th, niacinamide 5th
- + Fragrance-free
Worth knowing
- - Small, premium concentrate: $16.80 for a 10.7 g two-part set ($1.57 per g), spot-targeted rather than a whole-face daily serum
- - The brand notes a sulfur-like scent from the glutathione, with no fragrance to mask it
- - No finished-product efficacy study was opened, so no timeline for results is claimed
Key ingredients
These are the ingredients numbuzin highlights for this product, cross-checked against general dermatological and cosmetic-chemistry sources, not a full INCI list.
Fragrance: confirmed fragrance-free.
| Ingredient | What it is | What it does for skin |
|---|---|---|
| Tranexamic Acid | A specific active or extract in this formula. | Not yet independently verified against general dermatology sources. |
| Glutathione | An antioxidant naturally produced by the body, also used topically in some brightening formulas. | Helps neutralize free radicals and is marketed for brightening, though topical absorption and efficacy are less established than oral or injectable use. |
| Niacinamide | A form of vitamin B3, one of the most studied ingredients in cosmetic dermatology. | Strengthens the skin barrier by boosting ceramide production, helps even out tone by limiting pigment transfer to skin cells, and can reduce the look of enlarged pores. |
| Panthenol | Pro-vitamin B5, which converts to pantothenic acid once absorbed into skin. | Hydrates as a humectant, supports wound healing, and has anti-inflammatory, soothing effects on irritated skin. |
| Tocopherol | The chemical name for vitamin E as typically used in skincare formulas. | Helps neutralize free radicals from UV and pollution exposure and supports the skin's moisture barrier. |
What the brand says
numbuzin's own marketing claims, not our own findings.
- Press-and-mix concentrate — 100% glutathione powder (0.7 g) kept separate until first use
- TXA-led liquid with glutathione and niacinamide high in the INCI
Research-Based
Our assessment comes from pricing, ingredients, and published information, not personal use, the same standard we apply across the site. This product hasn't been hands-on tested yet. See our Methodology for what that distinction means.
Price history
Current price is the lowest we've recorded so far.
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Frequently asked
How much does numbuzin No.5 Glutathione TXA Advanced Dark Spot Ampoule Concentrate cost per g?
$1.57 per g (currently $16.80 for 10.7 g).
Has numbuzin No.5 Glutathione TXA Advanced Dark Spot Ampoule Concentrate been hands-on tested?
Not yet. Our assessment for this product comes from pricing, ingredients, and published information, not personal use, the same standard we apply across the site. See our Methodology for what that distinction means.
What are the key ingredients in numbuzin No.5 Glutathione TXA Advanced Dark Spot Ampoule Concentrate?
The ingredients numbuzin highlights for this product include Tranexamic Acid, Glutathione, Niacinamide, Panthenol, Tocopherol.