numbuzin No.5 Goodbye Blemish Serum is a Korean brightening serum for the marks blemishes leave behind: dark spots, post-acne marks and uneven-looking tone. Made with niacinamide and a vitamin C derivative, this No.5 serum helps skin look clearer, brighter and more even over time, so it suits oily, combination and normal skin. We sell it original from numbuzin, shipped from Seoul with Cash on Delivery.
numbuzin No.5 Blemish Serum at a glance
| Brand | numbuzin |
|---|---|
| Size | 30ml |
| Product type | Brightening serum |
| Key ingredients | Niacinamide and a vitamin C derivative (3-O-ethyl ascorbic acid), with centella asiatica |
| Best for | Post-acne marks, dark spots and dull, uneven-looking skin |
| When to use | Morning and/or evening, after toner, before moisturiser |
| Sun care | Wear a broad-spectrum SPF 50 sunscreen every morning |
| Sold in Pakistan by | Korean Skincare Pakistan — an Official Authentic seller of numbuzin in Pakistan |
Is numbuzin No.5 Blemish Serum right for your skin?
Best for
- Post-acne marks that linger after breakouts have settled
- Dull, tired-looking skin that wants a brighter, more even-looking tone
- Oily and combination skin that prefers light, layerable serums
- Anyone adding a single brightening step to a routine with daily sunscreen
Skip it, or patch-test first, if
- Your skin is sensitive to vitamin C or niacinamide: patch-test on the jawline first
- You need help with active pimples: this serum targets marks; use a salicylic acid cleanser or pimple patches for breakouts
- You already use several brightening serums: introduce this one alone first
- You don't wear sunscreen daily: marks keep darkening in the sun, so build that habit first
How do you use numbuzin No.5 Blemish Serum?
Morning
- Cleanse and apply toner, or wipe with a numbuzin No.5+ toner pad.
- Apply 2–3 drops and press them into the skin.
- Follow with a light moisturiser.
- Finish with a broad-spectrum SPF 50 sunscreen.
Evening
- Cleanse well, removing sunscreen and makeup.
- Apply 2–3 drops of the serum.
- Seal with a moisturiser.
Start once a day for the first week or two and patch-test first, because vitamin C and niacinamide can tingle on sensitive skin. Daily sunscreen is what lets any brightening serum show results.
What are the key ingredients in numbuzin No.5 Blemish Serum?
- Niacinamide — vitamin B3; helps marks look lighter and tone look more even over time
- 3-O-ethyl ascorbic acid — a stable vitamin C derivative used for brightness and a more even-looking tone
- Centella asiatica extract — a calming plant extract that helps skin feel comfortable
numbuzin No.5 Blemish Serum vs numbuzin No.5+ Toner Pads: which should you choose?
| numbuzin No.5 Blemish Serum | numbuzin No.5+ Toner Pads | |
|---|---|---|
| Format | Serum | Soaked toner pads |
| Step in the routine | After toner, before moisturiser | After cleansing, in place of toner |
| Line | No.5 brightening | No.5+ brightening, with glutathione (as named) |
| Best for | A leave-on step focused on marks | A quick, easy toner step |
| Use together? | Yes, after the pad | Yes, before the serum |
Choose the serum if you want a leave-on step focused on marks and uneven tone. Choose the pads if you want a quick, easy toner step. Many people use both, the pad first and then the serum; introduce them one at a time and patch-test first.
How can you tell if your numbuzin No.5 Blemish Serum is original?
- The box should be sealed, with the numbuzin name, the No.5 product name and the ingredient list printed clearly; blurred printing or spelling mistakes suggest a copy.
- The serum should look even and smooth, without separation, lumps or a sour smell.
- 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 Pads 70 Pads
- ANUA Niacinamide 10% + TXA 4% Serum
- Medicube TXA Niacinamide 15 Serum 30ml
Related guides and collections
- All numbuzin products in Pakistan
- Is Korean Skincare Pakistan an official authentic numbuzin seller?
- Korean skincare for dark spots and pigmentation
- Korean skincare for acne-prone skin
- 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 Blemish Serum: frequently asked questions
Is the numbuzin No.5 Goodbye Blemish 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 is numbuzin No.5 for?
No.5 is numbuzin's brightening line. This serum is aimed at the marks that blemishes leave behind, such as dark spots, post-acne marks and uneven-looking tone, rather than at active pimples. With daily use over several weeks, it helps skin look clearer and more even. Pair it with sunscreen every morning, because sun exposure darkens marks and undoes progress.
Can I use numbuzin No.5 serum every day?
Yes, once your skin is used to it. Start once a day for the first week or two, then use it morning and evening if your skin stays comfortable. Patch-test on the jawline first, because vitamin C and niacinamide can tingle on sensitive skin. In the morning, always finish with a broad-spectrum SPF 50 sunscreen.
Is numbuzin No.5 serum good for oily, acne-prone skin?
It can be, as a mark-fading step. It is a light serum that layers easily under a gel moisturiser. It is not a spot corrector for active breakouts, so use a salicylic acid cleanser or pimple patches for those and keep this serum for the marks. Patch-test first, and stop if your skin breaks out more or feels irritated.
Can I use numbuzin No.5 with retinol or exfoliating acids?
Yes, with care. Use this serum in the morning under sunscreen and your retinol or acid at night, or use them on alternate nights at first. Avoid layering several strong actives in one routine, because that raises the risk of irritation. If you are pregnant or breastfeeding, ask your doctor before using retinoids.
Which numbuzin number should I choose?
Each number targets a different concern. No.3 focuses on glow and soft texture, No.5 on brightening and the look of dark spots, and No.9 on a firmer, bouncier look. If marks and uneven tone bother you most, choose No.5. Our numbuzin number guide explains the full range and how to combine the numbers.
Where can I buy original numbuzin No.5 serum in Pakistan?
The original is sold here by Korean Skincare Pakistan, an Official Authentic seller of numbuzin in Pakistan. Orders ship from our Seoul warehouse and reach you in 5–7 days, with Cash on Delivery. The live price and stock show right under the Add to Cart button, and similar brightening serums are listed on this page.
