numbuzin No.5 Serum | Tranexamic Acid 4%, Niacinamide 5%, Glutathione, Vitamin C | Vitamin Concentrated Serum | Hyperpigmentation| Suitable for Sensitive Skin, Korean Skincare | 1.01 fl. oz.
Original price was: $20.80.$19.70Current price is: $19.70.
Price: $20.80 - $19.70
(as of Jul 31, 2025 21:56:20 UTC – Details)
From the brand
No.9 Line for Sagging Skin
No.5 Line for Dark Spots
No.3 Line for Pores
No.1 Line for Acne Care
No.2 Line for Plumping
Product Dimensions : 3.94 x 1.97 x 0.79 inches; 3.53 ounces
Item model number : NBZ-024
UPC : 691266759780
Manufacturer : BENOW Inc.
ASIN : B0C61FD7P9
Country of Origin : Korea, Republic of
Best Sellers Rank: #3,515 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #94 in Facial Serums
Customer Reviews: 4.5 4.5 out of 5 stars 3,535 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
[DARK SPOTS SERUM] Daily serum enriched with tone-evening ingredients, glutathione and vitamin C, and antioxidants, to gently yet effectively fade dark spots and hyperpigmentation, leaving you with glowing, clear skin.
[GLUTATHIONE] Glutathione is a well-known supplement especially in Korea, to improve dull, uneven skin tone and to fade hyperpigmentation, dark spots, and acne marks. This powerful antioxidant inhibits melanin overproduction and accumulation, which are the leading causes of hyperpigmentation. Glutathione-enriched skincare offers a gentler and more effective alternative to supplements.
[KEY INGREDIENTS] Contains antioxidants and tone-evening ingredients glutathione, vitamin C, niacinamide and tranexamic acid to help gently yet effectively fade hyperpigmentation and darks spots and even out dull, uneven skin tone. Panthenol and ceramides for soothing and hydration.
[CLINICALLY TESTED] Clinically proven to even out skin tone by 18.90% and reduce dark spots by 9.65% in 4 weeks. Hypoallergenic and skin irritation tests completed, making it safe to use for sensitive and acne-prone skin types.
[RECOMMENDED FOR] All skin types: oily, dry, combination, acne-prone, and sensitive skin. Especially recommended for the following skin concerns: hyperpigmentation, dark spots, acne scars and marks, dull and tired complexion.
Customers say
Customers find this serum effective at brightening dark spots and fading hyperpigmentation, with one noting visible results after a week of use. Moreover, the product receives positive feedback for its skin benefits, making it soft and moisturized while being gentle on sensitive skin. Additionally, customers appreciate its quick absorption, with one mentioning it soaks in without stickiness, and consider it worth the money.
13 reviews for numbuzin No.5 Serum | Tranexamic Acid 4%, Niacinamide 5%, Glutathione, Vitamin C | Vitamin Concentrated Serum | Hyperpigmentation| Suitable for Sensitive Skin, Korean Skincare | 1.01 fl. oz.
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Original price was: $20.80.$19.70Current price is: $19.70.
Nami –
Brightening Powerhouse in a Bottle
This serum has become a favorite in my morning routine. Iâve been using it with a vitamin C toner and Iâve noticed visible improvement in my skinâs texture and brightness. It layers well with other products and absorbs quickly without any stickiness. The formula is gentle enough for my sensitive skin but still feels effectiveâespecially for fading dark spots and evening out skin tone. A must-have, especially during the summer when hyperpigmentation becomes more noticeable.
Sherl –
Right Ingredients, Gentle but SLOW FADING over 3+ months
3-MONTH RESULTS (2x day):Slight fading of deep dark acne scars and age spots. Evens out skin tone. Gentle and not irritating. I am guessing this will take 6 to 9 months for deeper scars to fade. The pamphlet on Yesstyle.com shows 9.65% improvement in Blemishes after 4 weeks and 18.9% for even skin tone (this means expect slow steady results). They recommend also using the toner pad for faster results (165% improvement) but the combo irritated my skin. Overall, I like that it is gentle and will continue using it, right after the Toner.KEY INGREDIENTS:Contains the right chemicals known to fade dark spots like Glutathione, 4% Tranexamic Acid, 5% Niacinamide (both suppresses melanin), Alpha-Arbutin, Vit C, 3-0-Ethyl Ascorbic Acid, Tumeric etc.TEXTURE:Light serum, not sticky, absorbs quickly after Toner. Tap face gently for a few seconds after applying to help the skin absorb quicker before adding the next product (tip from korean skincare companies that works).ACNE PREVENTION TIPS: Best way to see improvement of skin is to keep the pores clear and acne from re-surfacing. I have not had a single breakout in 3 months using this routine. Also changed my skin type from Oily Combo to Normal.STEP 1 (2x day) – Use SEBUM CONTROL TONER to regulate skin oil production (I use NUMBUZIN No. 1 blue bottle)STEP 2 (2x day) – Use ANTIBACTERIAL SERUM to reduce inflammation (I use Beauty of Joseon Glow Serum w/60% propolis, Tea Tree)STEP 3 (2x week) – EXFOLIATE to keep pores clear, as clogged pores breed acne. I use Beauty of Joseon Ground Rice and Honey mud mask. Leave on face and neck for 15 minutes; this is a very gentle product. STEP 4 (Optional) – EAT food that aide the digestive system and help prevent acne like Yogurt, Kimchi and Sauerkraut (eat small amounts 2-3 times a week).I hope these tips are helpful to everyone.
John –
Very gentle brightening serum with modest results
I have sensitive, dry skin that is prone to hyperpigmentation from the sun. I’ve been using this serum for about two months now so I feel confident discussing what it can (and can’t) do for my skin. The serum is very hydrating and gentle, and I was surprised to find it NEVER irritated my skin – even when my skin barrier was compromised and I was dealing with irritation from another product. That alone is enough for me to be impressed! It’s also got a very rich, gorgeous texture. I’d say it’s on the thicker side, and has a lot of glide to it as you apply it across your face. I find it to be hydrating and moisturizing, but because it’s so rich it does take a second for it to sink in. I usually wait about 30 seconds before it dries down completely. Something I also appreciate is how dewy it makes my skin.Over the past two months I’ve noticed some modest but definite brightening from the serum. My dark spots have faded a bit and my skin is more plump and smooth. I notice less redness and irritation around my nose as well. But you shouldn’t expect this to work miracles – this serum seems to work best as a gentle, progressive brightener rather than an intense active. It’s perfect for someone like me who wants to benefits of a brighter skin tone without the irritation of harsher actives.This is very easy to integrate into almost any skincare routine, but here is a breakdown of who I think this serum is good for based on my own personal experience with it:This is for you if:-If you deal with hyperpigmentation from the sun or post-acne marks-If you want a brighter complexion but don’t want to use harsh actives-If you use other more intense actives (AHAs, Retinol, etc.) and you want a little “boost”-If you have dry and dehydrated skin and need a serum that will help hydrate and moisturizeThis is NOT for you if:-You expect this to make a drastic difference in your dark spots-You have very oil or acne prone skin-You are looking for a vitamin C serum
TM –
A brightening powerhouse
If you’re looking for a brightening serum that delivers results without compromising skin barrier health, this is a good choice. It has a great blend for anyone dealing with hyperpigmentation, dullness or uneven skin tone. Itâs gentle yet effective, absorbs quickly, layers well under moisturizer and sunscreen and leaves the skin feeling smooth and hydrated. Thereâs no irritation or purging and no strong scent. It is slightly pricey though but a little goes a long way. Just be consistent with use.
Darlene –
I love this serum!
This is my second bottle and I love it! It makes my skin look even and radiant. It’s perfect for my oily skin because it doesn’t feel greasy and absorbs well when you apply it. I can wear makeup over this serum and it’ll be fine.
W T Greenville SC –
Its working!
I love it. My skin is much smother and softer. Itâs also decreasing the dark spots on my face.
Love the quote , size it true. Recommended to friends and family. –
Awesome for sensitive skin , soft and light weight.
Great product line. Left my skin soft and supple. Light weight and non greasy for my sensitive skin.
Lexy Jeon –
No scent
I’m not sure if this serum hides dark spots, but it is supposed to. I haven’t used it everyday maybe that’s why, but it is affordable. There’s no scent and it’s not sticky.
Sandip Basu Mallik –
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FT –
The ingredient list is impressive, all work together to target pigmentation and give my skin a more even tone. It help keep my skin calm and hydrated. The texture is lightweight and absorbs quickly, no sticky residue. I use it both morning and night, and it layers really well under moisturizer and SPF. I noticed my complexion looking more radiant. Dark spots from previous breakouts are fading, and overall, my skin tone feels more balanced.
Just Mimi –
i have used a number of vitamin c serums and i just havent been able to get on with any so far. L-ascorbic acid can be very aggravating to many people, causing sensitive skin that can flake and peel before getting used to the active ingredients. the way numbuzin has formulated this No.5 serum is incredible. It still has a slight hot dog water smell (if you know you know!) but its very mild, but it feels amazing on the skin. its left looking glowy but not artificially so, and i have seen a definite improvement to my skins texture and radiance. Best of all, there has been absolutely zero irritation. Amazing product and one that i will buy forever i expect!
Matila –
It doesn’t have any effect. It’s just a waste of money. Also, the customer service is terrible. Although they promised a return, as advertised, the seller refused to process the return. Overall rating is 0, if that were an option. I do not recommend it. You can buy much better products from well-known brands for the same price.