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100% Authentic
New Packing update
numbuzin No.5+ Vitamin Concentrated Serum is a highly effective vitamin brightening serum featuring key ingredients like glutathione, niacinamide, alpha-arbutin, and tranexamic acid. Glutathione is a powerful antioxidant that works in synergy with many vitamins to build a stable and effective antioxidant network that maximizes its effect. It is clinically proven to improve the appearance of outer-skin melanin, under-skin melanin, skin tone and brightness after just 2-4 weeks.
- Delivery & Return
Delivery
Store delivery FREE
1-3 working daysHome or collection point from £35.00 FREE
On all your orders for home or collection point deliveryReturns
Return
We will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period).Returns in store FREE
Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed. Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.Shipping
Brampton – Same day Pickup available
GTA – 1-3 Days
Ontario/Quebec – 3 to 5 days
Rest of Canada – 5 to 7 daysReturns
Final sale – no return.
If any other issue please contact info@koreanshop.ca
CAD$ 35.00 Original price was: CAD$ 35.00.CAD$ 24.99Current price is: CAD$ 24.99.
Numbuzin No.5+ Vitamin Concentrated Serum 30ml
Get brighter, clearer, and healthier-looking skin with Numbuzin No.5+ Vitamin Concentrated Serum. This powerful Korean brightening serum is made to help reduce dark spots, acne marks, freckles, sun damage, and uneven skin tone.
If your skin looks dull or tired, this serum can help bring back your natural glow. It works to improve skin brightness while keeping skin soft, smooth, and hydrated. As a result, your skin looks fresher and more radiant with regular use.
Additionally, this serum combines powerful brightening ingredients like Glutathione, Niacinamide, Alpha-Arbutin, and Tranexamic Acid. These ingredients work together to fade pigmentation and improve overall skin tone. Above all, the formula is gentle enough for daily use and suitable for all skin types, including sensitive skin.
What Is Glutathione?
Glutathione is a popular ingredient in Korean skincare. It is known for helping skin look brighter and more even.
It helps reduce the look of dark spots caused by acne, sun exposure, and aging. It also protects skin from daily damage caused by pollution and UV rays.
That is why Glutathione is often used in products made for brightening, glow care, and pigmentation care.
When combined with vitamins and other brightening ingredients, it works even better.
Why Choose Numbuzin No.5+ Vitamin Concentrated Serum?
Many brightening serums only use one main active ingredient. However, stubborn pigmentation often needs more support.
Numbuzin made this serum to fight dark spots in several ways at once. It helps brighten skin, fade acne scars, improve uneven tone, and protect skin from future dullness.
This serum gives both brightening care and barrier care in one step.
Why customers love it:
- Helps fade dark spots
- Targets acne marks
- Improves dull skin
- Brightens uneven skin tone
- Hydrates while treating pigmentation
- Gentle for sensitive skin
Moreover, many users notice brighter skin in as little as 2 to 4 weeks with regular use.
Key Features
- Brightening vitamin serum
- Helps reduce dark spots
- Helps fade acne scars
- Targets hyperpigmentation
- Contains Glutathione capsules
- Enriched with Niacinamide
- Contains Alpha-Arbutin
- Contains Tranexamic Acid
- Improves skin glow
- Supports skin barrier
- Low irritation tested
- Suitable for all skin types
Main Benefits
1. Helps Fade Dark Spots
Dark spots from acne, sun damage, and aging can make skin look uneven.
This serum helps reduce their appearance over time. As a result, skin looks clearer and more balanced.
2. Brightens Dull Skin
Dull skin can make your face look tired.
This serum helps improve brightness and glow. Therefore, skin looks fresh, healthy, and radiant.
3. Improves Uneven Skin Tone
Uneven tone is a common skin concern.
Niacinamide, Alpha-Arbutin, and Tranexamic Acid work together to help skin look smoother and more even.
4. Protects Skin
Daily exposure to sunlight and pollution can make pigmentation worse.
Antioxidants in this serum help protect the skin and support healthier-looking skin.
5. Supports Skin Barrier
Brightening products can sometimes feel harsh.
This formula also includes soothing and hydrating ingredients like Panthenol, Ceramide NP, Beta-Glucan, and Bifida Ferment Lysate.
As a result, skin feels comfortable and hydrated.
Texture and Finish
Numbuzin No.5+ Vitamin Concentrated Serum has a lightweight and smooth texture.
It spreads easily and absorbs well into the skin. It does not feel heavy or greasy.
After applying, skin feels:
- Soft
- Smooth
- Hydrated
- Fresh
- Glowy
The finish is slightly dewy but not sticky. It layers well under moisturizer and sunscreen.
Who Should Use It?
This serum is great for people with:
- Dark spots
- Acne scars
- Sun spots
- Freckles
- Dull skin
- Uneven skin tone
- Sensitive skin
- Post-acne marks
- Tired-looking skin
Suitable for all skin types.
Key Ingredients
Glutathione
A strong antioxidant that helps brighten skin and reduce dark spots.
Niacinamide
Helps improve uneven skin tone, brighten dull skin, and support the skin barrier.
Alpha-Arbutin
Helps fade stubborn dark spots and pigmentation.
Tranexamic Acid
Known for helping improve acne marks, melasma, and uneven skin tone.
Vitamin Complex
This serum contains Vitamin C, Vitamin E, Vitamin B5, and Vitamin B12 to support brighter and healthier skin.
Ceramide NP
Helps strengthen the skin barrier and lock in moisture.
How to Use
- Wash your face and apply toner.
- Take 3–5 drops of serum.
- Apply evenly over the face.
- Gently pat until absorbed.
- Follow with moisturizer.
- Use sunscreen in the morning.
Use daily, morning or night.
FAQ
Is Numbuzin No.5+ good for acne scars?
Yes. It helps fade post-acne marks and dark spots.
Can sensitive skin use this serum?
Yes. It has completed a low irritation test and is suitable for sensitive skin.
How long before I see results?
Many users notice brighter skin in 2–4 weeks with regular use.
Is this serum sticky?
No. It feels lightweight and absorbs well.
Can I use it every day?
Yes. It is made for daily use.
Can I use it with Vitamin C?
Yes. It already contains vitamin ingredients and works well in brightening routines.
Why Buy Numbuzin No.5+ Vitamin Concentrated Serum?
If you want to reduce dark spots, acne scars, freckles, and uneven skin tone, this serum is a great choice.
It combines powerful brightening ingredients with soothing and hydrating care. Unlike harsh brightening products, this serum helps improve skin glow while keeping skin comfortable.
Above all, it helps you achieve clearer, brighter, smoother, and healthier-looking skin.
Full Ingredients
Base & Hydrating Agents: Vaccinium Vitis-Idaea Fruit Extract, Butylene Glycol, Water, Panthenol, Sorbitol, Sodium Hyaluronate, Pentylene Glycol, Glycerin
Brightening Actives: Niacinamide, Tranexamic Acid, Alpha-Arbutin, Glutathione, 3-O-Ethyl Ascorbic Acid, Ascorbic Acid, Ascorbyl Glucoside
Barrier Support: Bifida Ferment Lysate, Allantoin, Ceramide NP, Beta-Glucan, Dipotassium Glycyrrhizate, Hydrogenated Lecithin, Bisabolol
Antioxidants & Vitamins: Tocopherol, Tocopheryl Acetate, Ubiquinone, Thioctic Acid, Adenosine
Botanical Extracts: Melia Azadirachta Flower Extract, Ocimum Sanctum Leaf Extract, Melia Azadirachta Leaf Extract, Curcuma Longa Root Extract, Corallina Officinalis Extract, Tremella Fuciformis Extract, Sugarcane Extract, Chondrus Crispus Extract
Stabilizers & Safety: 1,2-Hexanediol, Tromethamine, Ethylhexylglycerin, Hydroxypropyl Cyclodextrin, Potassium Hydroxide, Behenyl Alcohol, Carbomer, Xanthan Gum, Disodium EDTA
Hashtags
#Numbuzin #VitaminSerum #DarkSpotSerum #KoreanSkincare #BrighteningSerum #GlowSkin
Top Keywords
numbuzin no 5 serum, numbuzin vitamin serum, dark spot serum, serum for acne scars, korean brightening serum, glutathione serum, tranexamic acid serum, alpha arbutin serum, serum for uneven skin tone, glow serum
Brand
Numbuzin
52 reviews for Numbuzin No.5+ Vitamin Concentrated Serum (30ml)
| 5 star | 78 | 78% |
| 4 star | 15 | 15% |
| 3 star | 5 | 5% |
| 2 star | 0% | |
| 1 star | 0% |
Customer Images




Tenzin
I have a dry and sensitive skin and this serum is wow. I really recommend it

Daniel
This serum is a must have for treating hyperpigmentation. It does not irritate my skin and this makes me soo glad as my skin is very sensitive. Will now be a staple in my routine

Anaiyah Rey
I have been looking for a great Vit C serum that will lighten my hyperpigmentation and give my skin an overall healthy glow.



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Numbuzin No.5+ Vitamin Concentrated Serum (30ml)
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It didn’t help with anything, gave me pimples, and finished really fast
[...]The texture is smooth and gel-like—slightly thick, initially sticky—but absorbs gracefully into skin, leaving behind a subtle dewy glow.
[...]This product is really lightweight and absorbs quickly so there is no problem on using it in the morning and under makeup.
[...]I have a dry and sensitive skin and this serum is wow. I really recommend it
[...]I use this in the morning and it makes my skin feel great, nothing too heavy
[...]I love this serum so much it really good I’ve used it for about month and half and just purchased my second bottle. It helped fading my dark spots and improved my skin.
[...]This serum has so many great ingredients such as arbutin and tranexamic acid, along with other antioxidants which not only make my skin glowy and hydrated but also in the long run, helps lighten my dark spot.
[...]Recently my skin broke out really bad and it left my skin with a lot of hyperpigmentation. Luckily I found this product and it really brightens my dark spots with in 2 weeks use. It doesn’t sting or give me any irritation like other vitamin c.
[...]i’ve used a lot of vitamin c serums, and they usually tend to give me rashes or break me out more, but this one is really good for sensitive skin and it hasn’t broken me out at all! i’ve noticed a huge reduction in my acne scars and a lot more even complexion.
[...]Overall a good serum with great consistency, lightweight, not irritating, and nurturing.
[...]i have a little bit of acne and red spots and after i used the whole bottle nothing changed
[...]This serum is a must have for treating hyperpigmentation. It does not irritate my skin and this makes me soo glad as my skin is very sensitive. Will now be a staple in my routine
[...]After a few uses, I see a difference in old acne scars and other things. I really like these products from Nambuzin, they are very good and work really well.
[...]my favorite vitamin c serum. it fades my dark spots so quickly.
[...]It is less irritating and does the job when it comes to clearing hyperpigmentation. It has a nice silky texture and glides of the ski
[...]It is not sticky and I love the texture of the serum. I hope it does what it says it will do. It has caused me any irritation yet
[...]I struggle with melasma and pigmentation around the mouth and eye area. Since using this for about 3 weeks, I have noticed a significant reduction in new pigmentation as well as lightening of existing pigmentation marks
[...]I have been looking for a great Vit C serum that will lighten my hyperpigmentation and give my skin an overall healthy glow.
[...]didnt do anything for my hyperpigmentation, darkspots or anything, dont see the hyper abt it
[...]bought this for my dark spots and have been using it for a few weeks. I already see a difference in my dark spots and it makes my skin feel so smooth.
[...]