What is Numbuzin No.3 Vitamin Concentrated Serum?

A brightening vitamin serum that combines niacinamide, tranexamic acid and vitamin C derivatives, aimed at dark spots, dullness and uneven skin tone.

Is Numbuzin No.3 Vitamin Concentrated Serum worth it?

Yes. All 6 gurus who reviewed it give it their stamp of approval, for a Guru Score of 87%.

What is Numbuzin No.3 Vitamin Concentrated Serum's Guru Score?

Numbuzin No.3 Vitamin Concentrated Serum holds a Guru Score of 87%. That is our read on how warmly the experts talk about it, based on the verdicts of 6 expert reviewers we have collected. It is also Guru Certified, our mark for products that hold broad approval across many expert reviewers.

Numbuzin No.3 Vitamin Concentrated Serum: a Guru Score of 87%

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

AliceintheRabbitHole

59k subs

✓Yay

"I am so much more impressed with this than I thought I would be. It has five percent niacinamide, which is [...] such a good level, and four percent tranexamic acid, combined with a tried and true ingredient in niacinamide rather than relying on the tranexamic acid alone. It also has some vitamin C derivatives [...] lower on the ingredients list. [...] It's a little bit thicker in texture, it feels a little heavy when you first apply it but then it absorbs really nicely."

All 2 takes from AliceintheRabbitHole

Numbuzin: 2 Month Results of the NEW Releases!

YESSTYLE Advent Calendar 2024! I am Shocked...

"This is Numbuzin's Vitamin Concentrated Serum, Brightening Antioxidant. This one also had my allergens in it in the past, but I feel like this brand has reformulated a ton, so I can try this one. I am so excited I can try this."

Mad About Skin

731k subs

✓Yay

"You've got your vitamin C, your glutathione, you've got a plethora of hyperpigmentation fighting ingredients. Got hydratants to hydrate. It's almost like a skin care routine in a bottle, which I really like. Great for streamlining. And it's not super heavy. It doesn't weigh down the skin. I've recommended this so many times on the channel and every time I do I'm flooded with comments of people saying yes I bought it on your recommendation and it really does work."

All 20 takes from Mad About Skin

Top 10: BEST KOREAN SKINCARE 2024

"It's a one and done if you want to just wash your face, use one serum and then put your sunscreen on. This is that serum that's going to give you a full skincare routine in a bottle. Amazing results means we don't have to compromise just because we're streamlining. I think I'm on bottle six now. It did go out of stock for a little time, it's back and I'm so glad it is."

TOP 10 KOREAN SKINCARE 2025 - Ultimate K-Skincare *Unsponsored*

"Numbuzin have got quite a few mentions in this video, I genuinely think the best Korean skincare brand out there right now. [...] This is like you're all in one skincare routine in a bottle. So if you're somebody that just wants to be able to cleanse the skin, put a serum on, put your sunscreen on and get out of that door, this is that serum. It's got your gluty hyperpigmentation, it's got your peptides which are going to boost volume in the skin, hydration and can help with anti-aging."

Top ANTI AGING KOREAN SKINCARE - Botox Alternatives For Anti Ageing

"I always have one of these in reserve because I use it every single day and my skin loves it. The reason I say this is great for anti-aging is this ingredient highlighted on the sticker: glutathione. Glutathione is a potent antioxidant protecting the skin against premature aging, but it's also great to brighten the skin. It works great alongside vitamin C which is also in here, so you are going to have brighter, more luminous, radiant skin after just like a month of using this."

Best KOREAN SKINCARE for ANTI AGING - Must Have K-Skincare 2025

"It's going to help lift and brighten the skin. It's going to help fade hyperpigmentation. It's going to help boost collagen production to minimize fine lines and wrinkles. One-stop shop for your anti-aging. The pads are great, but for me, a little bit wasteful. So yes, I think the serum is where it's at. If you've been wanting to try this serum out, it's been out of stock for forever. Run, don't walk. Get it now."

ULTIMATE KOREAN SKINCARE - Next Level K-Skincare

"I absolutely love them. [...] The ingredients in here are phenomenal when it comes to fading hyperpigmentation, dark spots, and discoloration. You've got your vitamin C's, you've got your niacinamide, your glutathione, all the things you want for fading hyperpigmentation. [...] For me I prefer the serum. That's the texture that I enjoy applying the most and fits with my skincare routine."

Ultimate BOTOX IN A BOTTLE SKINCARE ROUTINE - My Morning Anti Aging Routine

"It has centella asiatica to calm and soothe with some great other calming and soothing ingredients alongside it, definitely great if you've got an active breakout. It also has tranexamic acid and AHA, which [...] together are like the ultimate pigment correcting duo. [...] Hyperpigmentation is actually the number one skin concern people report as we age, so fighting those dark spots and discoloration with tranexamic acid and AHA is established as essentials in your skincare routine."

MUST HAVE KOREAN SKINCARE - K-Skincare Everyone Should Own

"This is an entire skincare routine in a bottle. I absolutely adore this. On the go, if you're in a rush and you just want a one-and-one product, this is such a great one. I will always have my heart. This is not massively expensive, I think it's 17. It does go in and out of stock a lot, so I'd say if you like this and it's in stock buy a couple. [...] It just works. Such a nice product that I rave about all the time."

BEST SERUMS 2023 - Multi-Active Face Serums (10/10 Anti-Aging Skincare)

"I've tried this out, first time about three months ago, and I was wowed by the results. This has everything: three different types of vitamin C, you've got glutathione working beautifully with vitamin C to really eradicate excess pigment, you've got some tranexamic acid, you've got some alpha arbutin, you've got some antioxidants. You've got a lot going on in here and it's still a super light formulation. [...] This is a beautifully lightweight serum that just glides onto the skin."

Full KOREAN SKINCARE ROUTINE - Ultimate Korean Skincare Favourites

"It's packed full of tranexamic acid, you've got some vitamin C derivatives in here great for the evening routine, you've got calming and soothing ingredients, you got glutathione to fade hyperpigmentation which I definitely need. It does it all. I love this. [...] Working that in doesn't sting, it doesn't burn, it doesn't pill considering how much active potency you've actually got in there. It just worked so so well and that just sinks all in."

BEST NEW ANTI-AGING SKINCARE - 10 Products You Need To Know About!

"I have the Numbuzin No.3 Vitamin Concentrated Serum, and this is an amazing amazing option. [...] I personally prefer the serum version, but it's out of stock so there are pads available as well. I just prefer the ease of the serum. It's [...] like a skincare routine in one. [...] I use the two in my skincare routine all the time, and [...] I'm on my second bottle."

BESTSELLING KOREAN SKINCARE 2024 - Skincare Favourites and Fails

"You've got your tranexamic acid, you've got beautiful blended niacinamide vitamin C, peptides, everything is happening in here. You can literally cleanse the skin, use this, put a sunscreen on and you're done. [...] The key ingredient in here is glutathione, which works beautifully alongside that vitamin C to fade hyperpigmentation, glow up the skin, and just even everything out. I love that product, I cannot rave about it enough."

NEXT LEVEL VITAMIN C RESULTS - Best Vitamin C Serum Pairings

"It has a great dose of vitamin C, a fantastic dose of glutathione alongside it, giving you like the one-stop shot for a more bright, more radiant complexion. The great thing is this actually uses vitamin C derivatives alongside that glutathione, so if you did want to get that ultimate glow you can also pair a vitamin C alongside this, so you're getting your derivatives, your glutathione, whichever other vitamin C you're getting that pure form hit."

KOREAN SKINCARE AWARDS 2024 - 5 Korean Skincare Brands You Need (*Not Sponsored*)

"I love these. This is like a one-and-done serum because you've got your vitamin C, you've got a plethora of calming soothing ingredients, glutathione, it's doing it, got some tranexamic acid in here, it's just doing everything. So on a busy day where you want to just cleanse your skin, put one serum on and then throw in a sunscreen and go, let this be that serum. So good, like so good."

🏆 Greatest KOREAN SKINCARE SERUMS 2025 - Korean Skincare Awards

GREATEST BUDGET SKINCARE EVER - Top 3 Drugstore Skincare In Every Category

"It's going to be your vitamin C, it's going to be your hyperpigmentation serum, it's going to be your calming and soothing serum, and it's even got peptides in there. It's amazing, it's phenomenal, and I absolutely love it. It comes in at about £14 here in the UK, so it's super inexpensive when you think of it as a 4-in-one. [...] I love this. It's been my go-to for [...] two or three years."

BEST HYPERPIGMENTATION SERUM EVER! - Better Than Vitamin C Serums

"I have just discovered another product that I think works better than the Topicals stage of discoloration serum and actually gives you every single ingredient you need in your skincare routine in order to have the most luminous vibrant and glowing skin possible. Numbuzin is a brand that I've experimented with in the past but when they released this I looked at the ingredients list I was genuinely shocked."

KOREAN SKINCARE AWARDS 2025 - Very Best Korean Skincare

"This is my favorite skincare routine in a bottle. If you're somebody that doesn't want to have a million and one products in your routine, you want something to streamline, get this. It's packed full of everything you need in order to have a comprehensive routine from your vitamin C through to your calming and soothing ingredients. You've got your peptides. You've got your humectants to plump, nourish, and hydrate."

Ultimate GLOWING SKIN - Best Serum for Brighter Skin

"I've been using this morning and evening for the past 6 months and honestly my skin has never felt better. My skin confidence is through the roof and I've definitely noticed the fading of that hyperpigmentation and that I've been able to retain a little of that glow that I always seem to lose in Winter. I will be using this year round not just in winter but I think it's in those cooler months where this really comes into its own."

ULTIMATE KOREAN SKINCARE - Top 3 Korean Skincare Serums 2024

"This is the Numbuzin No.3 Vitamin Concentrated Serum and [...] I genuinely adore this serum. It's packed full of everything you need for a comprehensive skincare routine and it just gets your glow game so on point. You'll be radiating to the gods even in the cooler winter months. The key here is glutathione, which I think is the star ingredient, along with two different forms of vitamin C stabilized so it's got a super long shelf life, which I love."

NEW YEAR LIVESTREAM - Deals, Giveaways, Skincare Chat and More..

"I love the Numbuzin vitamin concentrate serum, I do not give it away lightly, it is one you are honored to receive."

Kelly Driscoll

90k subs

✓Yay

"This is the Numbuzin No.3 Vitamin Concentrated Serum, and it's very similar to the toner and it is great for some serious brightening and really targeting hyperpigmentation on the skin. The ingredients here are pretty similar. We do have the niacinamide content as well as the glutathione and we have multiple forms of vitamin C. They've added an additional form of vitamin C in this one as well as arbutin. And they round out the serum with tranexamic acid as well as panthenol."

All 2 takes from Kelly Driscoll

Serious Skin Brightening? Numbuzin No 5+ Line Review

"I've noticed results for hyperpigmentation. I have some dark spots [...] that were left over from when I got pimples that got inflamed and swollen on my skin, and it absolutely worked for that. It absolutely worked for dullness. I think it actually helped a little bit with [...] enlarged pores. When your pores look large and full of sebum and blackheads, it really makes your skin [...] look very textured. This helped with that, which was not something I was expecting."

My numbuzin Top 5 Skincare Picks!

CYoung

95k subs

✓Yay

"This one is known for erasing hyperpigmentation, but we just tested the texture, and it surprisingly made it into the top two for two out of three testers. Jay picked it as her number one, it felt a bit slippery at first but she saw no signs of breakouts even with generous use, perfect for night care. Yuna, our most sensitive skin tester, ranked it second, she said it felt more like an emulsion and that she'd totally use it up."

Top Pick: vitamin c serum

All 8 takes from CYoung

How to Stop Buying the Wrong Skincare After 40 (Only 5 Ingredients Actually Matter)

"Honestly I haven't found a really well working vitamin C in the market so far, so the other four ingredients matter a lot more, but if I had to pick one vitamin C, I chose the number five serum. It has 5% niacinamide and panthenol, so it's gentler than most vitamin C serums, great for sensitive skin, and people say it does a pretty good job on post acne marks and dark spots."

Blind Testing 16 Viral Serums 💥 Which Ones Are Worth It?!

TOP 10 Korean Skincare Brands | Global #1 VS Korea #1 - WHICH IS BETTER?

"This serum is all about fading dark spots and brightening your skin. I don't have dark spots so I can't speak to that, and as for the brightening, I didn't see a thing. That said, it is moisturizing, at least for dry skin, if you have oily or combo skin keep it to your night routine only, it's a bit heavy for daytime."

Viral Korean Serums Tier Lists | Ranked and Reviewed

"This one is very popular. It contains 5% niacinamide to help even out skin tone, 4% tranexamic acid effective against UV induced discoloration, and 5% panthenol to further soothe and hydrate the skin. Overall the blend of ingredients is designed to minimize potential irritation, and it's gentle enough to use before applying makeup. I'd rate this an A."

1 Year Review // Is Numbuzin still Good? Honest Review (The Best, So-so’s and The Worst)

"I don't have that much pigmentation so I can't really see that much difference, it's not my favorite, but whenever I apply it, it definitely feels easy to use. Unlike other vitamin C products that can smell and feel itchy, this one is definitely soft. [...] I tried it together with the number one toner for fading scars, it felt more moisturizing because of the ceramide and peptide, [...] more bouncy, but I ended up not using this one that much because I'm not that focused on fading scars."

Chill&Chat: CYoung’s Live

"For fading acne scars I recommend Numbuzin number five, it can make them a little lighter."

Korean Skincare, Makeup Q&A LIVE 1

"The Numbuzin No.5 serum is popular, and if you use two or three bottles your skin becomes a little lighter, but usually it's not enough. I feel a little brighter using it, so you can try it out, but just don't expect too much, I think people expect too much from it."

I tried VIRAL TIKTOK KOREAN SKINCARE products… a brutal and honest review(Not Sponsored)

"It's really good to apply in the morning and evening, pretty casually. Similar to the AXIS-Y serum, this one has 5% niacinamide, so if you have hyperpigmentation and dark spots this one actually fades them out, though for me I couldn't really see that much of a difference. Even though it's a vitamin C serum, it applies so well and it doesn't sting for me, I think because they also put in about 5% panthenol, which is amazing for dry skin because it improves your skin barrier."

Dr. Vanita Rattan

1.23M subs

✓Yay

"I actually really love this formula. They've got niacinamide as the third ingredient, [...] probably about 5%. The fourth ingredient is panthenol, so it's your anti-inflammatory. The fifth ingredient is tranexamic acid, a lovely tyrosinase inhibitor for pigmentation. There's a fraction of a percent of vitamin C, and to be honest, this is not an airless pump, so vitamin C is unlikely to work. I actually really like this product for early pigmentation marks."

No BS Beauty

89k subs

✓Yay

"Numbuzin is [...] cruelty-free. [...] In terms of performance, this one feels super calming and hydrating on my skin, which is really nice. It's unlike a lot of other vitamin C serums, a lot of vitamin C serums don't feel super calming or hydrating on your skin. They give you a glow, they help with hyperpigmentation, but they don't feel that great on your skin. Most of them don't, some do but most of them don't. I do believe this helps brighten my skin a bit. My skin enjoys this one."

All 3 takes from No BS Beauty

numbuzin Skincare - No.5 Vitamin Boosting Essential Toner Review, How to Use, and Dupes

"If you've tried their vitamin 5 serum I really love that one, it's very nice. This one's in the same lineup. For ingredients we've got niacinamide, which is a great anti-acne skin brightening ingredient. We've got C buckthorn extract, which is a great antioxidant and also good for brightening skin. We've got arbutin which is a skin brightening antioxidant. We've got adenosine, which is cell communicating, anti-inflammatory."

numbuzin Skincare New! 🆕🍊🍑 No.5 Vitamin Concentrated Serum Review & How to Use

Top 7 Brightening Toners 🙌✨ Fade Your Hyperpigmentation, Dark Spots, & Melasma with these Essences

"The Numbuzin number five vitamin serum is wonderful too."