numbuzin No.5+ Glutathione Vitamin Concentrated Serum is a Korean brightening serum with niacinamide, glutathione, a vitamin C derivative, tranexamic acid and alpha-arbutin. It helps dull skin, dark spots and post-acne marks look brighter and more even over time, and suits most skin types. It is the numbuzin No.5 vitamin concentrated serum many people ask about, original from numbuzin in 30ml, shipped from Seoul with Cash on Delivery.
numbuzin No.5+ Vitamin Serum at a glance
| Brand | numbuzin |
|---|---|
| Size | 30ml |
| Product type | Brightening serum |
| Key ingredients | Niacinamide, glutathione, 3-O-ethyl ascorbic acid (vitamin C), tranexamic acid, alpha-arbutin |
| Best for | Dull, uneven-looking skin; dark spots and post-acne marks |
| Texture and finish | Light serum that absorbs quickly |
| When to use | Morning and/or evening, after toner, before moisturiser; sunscreen every morning |
| Sold in Pakistan by | Korean Skincare Pakistan — an Official Authentic seller of numbuzin in Pakistan |
Is numbuzin No.5+ Vitamin Serum right for your skin?
Best for
- Dull-looking skin that wants a brighter, more even glow
- Post-acne marks and dark spots
- Uneven-looking tone from sun exposure, together with daily sunscreen
- Normal, combination and oily skin that likes a light serum
Skip it, or patch-test first, if
- Your skin is very sensitive or has reacted to vitamin C before: patch-test on the jawline for a few days
- You already use several brightening serums: pick one, because layering many actives can irritate
- You expect it to change your natural skin colour: it brightens and evens the look of your tone, nothing more
How do you use numbuzin No.5+ Vitamin Serum?
Morning
- Cleanse and apply toner.
- Apply 2–3 drops to the face and press it in.
- Follow with moisturiser and a broad-spectrum SPF 50 sunscreen; vitamin C and brightening ingredients work best with daily sun protection.
Evening
- Cleanse and apply toner.
- Apply 2–3 drops of the serum.
- Seal with a moisturiser.
On nights you use retinol or exfoliating acids, use this serum in the morning only, to keep your routine gentle.
What are the key ingredients in numbuzin No.5+ Vitamin Serum?
- Niacinamide (vitamin B3) — helps uneven-looking tone and marks look more even and supports the skin barrier
- Glutathione — an antioxidant used in Korean brightening skincare for a brighter-looking tone
- 3-O-ethyl ascorbic acid — a stable form of vitamin C that brightens dull skin and adds antioxidant protection
- Tranexamic acid — a brightening ingredient that helps dark spots look lighter
- Alpha-arbutin — a brightening ingredient that helps uneven-looking areas look lighter
numbuzin No.5+ Vitamin Serum vs numbuzin No.5+ Toner Pads: which should you choose?
| numbuzin No.5+ Vitamin Serum | numbuzin No.5+ Toner Pads | |
|---|---|---|
| Format | Serum | Soaked toner pads |
| Step in the routine | After toner, before moisturiser | After cleansing, as the toner step |
| Focus | Concentrated brightening step | Brightening plus a quick toner step |
| Best for | A targeted brightening routine | Quick, easy routines and travel |
| Use together? | Yes, serum after the pad | Yes, pad first |
Choose the serum if you want a concentrated brightening step in your routine. Choose the toner pads if you want a quick step that tones and brightens in one swipe. For stubborn marks, many people use both: the pad first, then the serum.
How can you tell if your numbuzin No.5+ Vitamin Serum is original?
- The serum should be smooth and evenly mixed, with only a light smell; a separated, gritty or strongly perfumed liquid is a warning sign.
- The box should be sealed, with the numbuzin name, No.5+ and the ingredient list printed clearly; blurred print or spelling mistakes suggest a copy.
- A price far below other trusted sellers usually means old stock or a fake.
- Check the batch code printed on the box and the bottle: the two must match, and the code should look printed, not stuck on. Every unit we sell is batch-code checked on arrival in Seoul, and we verify any code for free — see how to check if Korean skincare is original.
Similar products to consider
- numbuzin No.5+ Glutathione Vitamin Concentrated Toner 200ml
- numbuzin No.5+ Glutathione Vitamin Concentrated Toner Pads 70 Pads
- ANUA Niacinamide 10% + TXA 4% Serum
- APLB Glutathione Niacinamide Ampoule Serum 40ml
- COSRX The Vitamin C 23 Serum 20ml
Related guides and collections
- All numbuzin products in Pakistan
- Is Korean Skincare Pakistan an official authentic numbuzin seller?
- Korean skincare for brightening and glow
- Vitamin C skincare in Pakistan
- numbuzin number guide: which number suits your skin?
Korean Skincare Pakistan is a Seoul-based authorised seller of major 40+ K-beauty brands. Every product is 100% original, batch-code verified on arrival and shipped from our Seoul warehouse, delivered to your door in 5–7 days nationwide with Cash on Delivery.
numbuzin No.5+ Vitamin Serum: frequently asked questions
Is the numbuzin No.5+ Glutathione Vitamin Concentrated Serum at Korean Skincare Pakistan original?
Yes. Korean Skincare Pakistan is an Official Authentic seller of numbuzin in Pakistan. Our stock is bought from official numbuzin channels in Seoul, every unit is batch-code checked on arrival and shipped from our Seoul warehouse. If a product is ever not original, an old batch or near expiry, you can return it free within 7 days.
What does numbuzin No.5 serum do?
It is a brightening serum. Niacinamide, glutathione, a vitamin C derivative, tranexamic acid and alpha-arbutin work together to help dull skin, dark spots and post-acne marks look lighter and more even over several weeks of steady use. It also leaves a fresh glow. Wear sunscreen every morning, or the marks it helps fade will darken again.
Will numbuzin No.5 serum change my skin colour?
No. It is a brightening serum: it helps dull skin, dark spots and post-acne marks look lighter and gives a more even-looking, glowing tone, but it does not change your natural skin colour, and no safe cosmetic does. Steady use with daily sunscreen gives the best results. Be wary of any product that promises a lighter skin colour.
Can I use numbuzin No.5 with retinol or niacinamide?
It already contains niacinamide, so you do not need a separate niacinamide serum on top. With retinol, the simplest plan is this serum in the morning with sunscreen and retinol at night. If your skin is calm, you can use both at night, serum first. Avoid layering it with strong exfoliating acids on the same night.
How can you spot fake numbuzin?
Buy from an authorised seller and check the pack. The box should be sealed, with clear, sharp printing of the numbuzin name, the number, the ingredient list and a batch code that matches the bottle. Blurred print, spelling mistakes, a missing batch code or an unusually low price are warning signs. We batch-check every unit and verify any code for free.
Is numbuzin a popular brand in Korea?
Yes. numbuzin is a Korean skincare brand known for its numbered lines, where each number has a different focus; No.5 is the brightening line for dull skin and dark spots. It is widely sold in Korea and online around the world. Korean Skincare Pakistan is an Official Authentic seller of numbuzin in Pakistan.
Where can I buy the original numbuzin No.5 serum in Pakistan?
The original is sold here by Korean Skincare Pakistan, an Official Authentic seller of numbuzin in Pakistan. The live price and stock of the 30ml bottle show right under the Add to Cart button. Orders ship from our Seoul warehouse and arrive in 5–7 days, with Cash on Delivery nationwide.
