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Numbuzin

No.5 Glutathione Tranexamic Acid Advanced Dark Spot Ampoule.

Numbuzin
No.5 Glutathione Tranexamic Acid Advanced Dark Spot Ampoule
Mists & Essences

Guru Score

81%

Yay

3 experts · Moderate agreement
3Gurus
3Yay
0Mixed
0Nay

What the gurus are saying

Unanimous yay from 3 reviewers. Mad About Skin, AliceintheRabbitHole, and No BS Beauty all rate it highly. Top take: "This is the best way of kicking off a hyperpigmentation routine.", Mad About Skin.
Synthesized from 3 expert reviews · most recent take August 2026

What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored
Yay
"This is the best way of kicking off a hyperpigmentation routine. I don't use it every day because I feel it works best if you use it for about a month and then move on to maintenance, and it'll tackle your hyperpigmentation within a month if you're consistent with it. It comes with two vials, each lasting two weeks, so a month's worth of product. I use it as a one month flash fix to get on top of things, and I'd say it's the strongest hyperpigmentation serum that exists on the Korean skincare market."
Top Pick: hyperpigmentation serum
All 2 takes from Mad About Skin
FADE DARK SPOTS FAST - Best Dark Spot Serums 2026
"I tried it and it actually works. It genuinely works."
THIS BRAND CHANGED KOREAN SKINCARE FOREVER - Numbuzin Exposed
"This is the best way of kicking off a hyperpigmentation routine. I don't use it every day because I feel it works best if you use it for about a month and then move on to maintenance, and it'll tackle your hyperpigmentation within a month if you're consistent with it. It comes with two vials, each lasting two weeks, so a month's worth of product. I use it as a one month flash fix to get on top of things, and I'd say it's the strongest hyperpigmentation serum that exists on the Korean skincare market."
Yay
"I've been using this more as a spot treatment under my patches, which helps with the bad smell of the product and with general peeling, though I don't think I really experienced peeling myself. I'm not going to finish this in two weeks like I thought, so it's lasting longer than I expected. In a week of use I feel like I'm already seeing results from this, though I have been pairing it with the Edom so maybe it's a synergistic effect. I'm wondering if this is the hyperpigmentation treatment I've been looking for."
All 2 takes from AliceintheRabbitHole
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"I've been using this more as a spot treatment under my patches, which helps with the bad smell of the product and with general peeling, though I don't think I really experienced peeling myself. I'm not going to finish this in two weeks like I thought, so it's lasting longer than I expected. In a week of use I feel like I'm already seeing results from this, though I have been pairing it with the Edom so maybe it's a synergistic effect. I'm wondering if this is the hyperpigmentation treatment I've been looking for."
K-Beauty Skincare Try On: Expectation vs Reality!
"I hate to put this third in the video because my goodness, the ingredients look great, I love the system here, but as much as I don't like admitting it, I am affected by stinky skin care. I still smell this on me and it makes me feel a bit self-conscious. It's a two week supply, so we will give it a fair go, but it's hard to be that excited when a product smells that bad."
Yay
"For brightening ingredients this one's got a ton of them"
All 6 takes from No BS Beauty
Best Brightening Products for Dark Spots, Hyperpigmentation, & Melasma 🙌💗 How to Even Skin Your Tone
"This one's really nice at 26 bucks."
K-Beauty Skincare for Brightening Skin 💗🙌 Best Korean Products for Hyperpigmentation & Dark Spots
"For brightening ingredients this one's got a ton of them"
April Skincare & Beauty Product Empties - What I've Finished This Month
"The Numbuzin No.5 Glutathione Tranexamic Acid Advanced Dark Spot Ampoule was great. It helped brighten my skin up a touch, which I need. It's more of a two- to three-week type treatment. You're supposed to use it as a concentrated kind of vitamin C serum in the morning, and then after a couple weeks, once you're finished, return to your normal vitamin C serum or you can repurchase it. It's got some nice brightening ingredients. It did have a strong vitamin-ish scent, which I was not a fan of, but it does dissipate pretty quickly."
Best Brightening Product?! Numbuzin No.5 Glutathione TXA Advanced Dark Spot Ampoule Concentrate
"It's unfortunately has that strong smell because honestly, um with everything else with this product, I I could see myself using this a lot more often"
New K-Beauty Skincare First Impressions Try Out 🆕Numbuzin, Mixsoon, Iunik Round Lab & More!
"It's very sticky. I don't know how many ounces this is. Um, let me see. Does it say uh.35 oz and the powder is 0.02 oz. So, very tiny amount, but it's very sticky. Like incredibly sticky."
New Skincare Products Launching to be Excited About 🆕 La Roche Posay, Numbuzin, Vanicream & More!
"It looks quite nice. Doesn't look like it has any fragrance in it or anything. So, uh, this is also sitting in my cart."

Frequently asked.

Is Numbuzin No.5 Glutathione Tranexamic Acid Advanced Dark Spot Ampoule worth it?

Yes. All 3 gurus who reviewed it give it their stamp of approval, for a Guru Score of 81%.

What is Numbuzin No.5 Glutathione Tranexamic Acid Advanced Dark Spot Ampoule's Guru Score?

Numbuzin No.5 Glutathione Tranexamic Acid Advanced Dark Spot Ampoule holds a Guru Score of 81%. That is our read on how warmly the experts talk about it, based on the verdicts of 3 expert reviewers we have collected. At least one expert has named it a Top Pick in its category.

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