What is the numbuzin No.5+ Glutathione Vitamin Concentrated Serum?
No.5+ is numbuzin's dedicated tone serum. The brand numbers its lines by purpose, and number 5 is all about clarity and radiance. This upgraded "plus" version puts glutathione alongside a full brightening team: niacinamide, tranexamic acid, alpha-arbutin and several forms of vitamin C. A cushioning base of panthenol, ceramide NP, shea butter and bifida ferment keeps the formula comfortable enough for daily use.
It is one of the most talked-about Korean brightening serums in Pakistan, where sun, heat and post-acne marks make uneven tone a common worry. Rather than one hero ingredient, it relies on several working together, which is why many people find it effective yet gentle.
Is numbuzin No.5 a vitamin C serum?
It contains vitamin C, but it is better described as a multi-active brightening serum. The vitamin C comes in three gentle forms (3-O-ethyl ascorbic acid, ascorbyl glucoside and a small amount of ascorbic acid), working alongside niacinamide, glutathione and tranexamic acid rather than being the only star.
What is glutathione in skincare?
Glutathione is an antioxidant that Korean brands use for a brighter, more even-looking complexion. Applied on the skin, it supports radiance and helps dullness look refreshed. Think of it as a radiance helper: your complexion can look clearer and more uniform, but your natural skin colour stays the same.
numbuzin No.5+ serum benefits: what it does for your skin
This serum is designed for a clearer, more luminous look. Here is what that means in practice.
Helps dark spots and post-acne marks fade
Tranexamic acid, niacinamide and alpha-arbutin target the look of discolouration, so brown marks from old pimples and sun spots tend to soften with steady use and sunscreen.
Brighter, more radiant skin
Vitamin C, glutathione and antioxidants such as ubiquinone and thioctic acid help a dull, tired complexion look fresher and more awake.
A more even overall tone
Patchy areas around the mouth, cheeks and forehead often look more uniform over a couple of months.
Hydration and calm
Panthenol, ceramide NP, sodium hyaluronate, allantoin and bisabolol keep skin comfortable, so the brightening work does not come at the cost of dryness or redness.
numbuzin No.5+ serum key ingredients
The formula is long, so here are the ingredients that drive it.
| Ingredient | What it does |
|---|---|
| Glutathione | Antioxidant for a brighter, more even-looking complexion |
| Niacinamide | Evens tone, refines pores, supports the barrier |
| Tranexamic acid | Targets the look of stubborn marks and patches |
| Alpha-arbutin | Brightening support for dark spots |
| Vitamin C (3-O-ethyl ascorbic acid, ascorbyl glucoside, ascorbic acid) | Radiance and antioxidant protection |
| Panthenol, ceramide NP, bifida ferment lysate | Comfort, hydration and barrier support |
| Neem, holy basil and turmeric extracts | Botanicals with a calming, balancing role |
What are the ingredients in numbuzin No.5 vitamin concentrated serum?
The full list appears in the ingredients section of this page. The headline actives are glutathione, niacinamide, tranexamic acid, alpha-arbutin and vitamin C derivatives, supported by panthenol, ceramide and hyaluronic acid. No added fragrance is listed.
Is numbuzin No.5+ serum right for your skin?
Most skin types can use it. Here is how it suits different needs.
Is it good for sensitive skin?
numbuzin describes it as suitable for sensitive skin, and the soothing base helps. Still, any brightening serum can tingle at first, so patch-test and start once a day.
Is it good for oily and acne-prone skin?
Yes. The light, fast-absorbing texture suits oily skin, and niacinamide helps with shine. It is especially useful for the dark marks breakouts leave behind; pair it with an acne treatment if pimples are still active.
Is it good for dry skin?
Yes. Shea butter, ceramide and panthenol make it more cushioning than many brightening serums. Follow it with a good moisturiser.
Who should patch-test first or check with a doctor?
Patch-test if you have reacted to vitamin C or niacinamide before. If you are pregnant or breastfeeding, ask your doctor before starting brightening actives such as tranexamic acid and arbutin.
How to use numbuzin No.5+ serum morning and night
It works in either routine, and many people use it twice daily.
In your morning routine
- Cleanse and apply toner, for example the numbuzin No.3 Super Glowing Essence Toner.
- Press two or three drops into your face.
- Apply moisturiser.
- Finish with broad-spectrum sunscreen; this step is essential for brightening results.
In your evening routine
- Cleanse and tone.
- Apply the serum.
- Seal with moisturiser.
When to use numbuzin 5 serum: morning or night?
Both work. Morning use pairs its antioxidants with your sunscreen, which is ideal in Pakistan's strong sun. If you use retinoids or exfoliating acids at night, keep this serum for mornings only.
How often should I use it?
Once a day for the first week or two, then twice daily if your skin stays comfortable.
Can I mix vitamin C serum with niacinamide?
Yes. The old idea that they cancel each other out does not hold for modern formulas, and this serum already contains both. If your skin is reactive, use a separate vitamin C serum in the morning and a niacinamide serum at night rather than stacking several brighteners at once.
What not to mix it with
Avoid layering it with several other brightening serums in the same routine. On retinoid nights, for example with the celimax Vita-A Retinol Shot Tightening Serum, use No.5+ in the morning instead.
numbuzin No.5+ serum results: how long until you see a difference?
Brightening is a steady process. Here is a realistic timeline.
Within two to three weeks
Skin often looks fresher and more radiant, and feels hydrated and smooth.
After eight to twelve weeks
Dark spots and post-acne marks usually look noticeably softer and tone more even, provided you wear sunscreen every day.
Does numbuzin No.5+ serum have side effects?
Most people tolerate it well. The possible reactions are a mild tingle, temporary redness in sensitive skin or a breakout from one of the many botanicals.
What should I do if it stings?
Use it once a day, apply it over a light layer of moisturiser and pause other actives. If the stinging continues, stop and speak to a dermatologist.
numbuzin No.5+ vs the original No.5 Vitamin Concentrated Serum
Shoppers often ask what changed in the "plus" version.
| No.5+ Glutathione Vitamin Concentrated Serum | Original No.5 Vitamin Concentrated Serum | |
|---|---|---|
| Headline actives | Glutathione, vitamin C, niacinamide, TXA, alpha-arbutin | Vitamin-focused brightening complex |
| Focus | Dark spots, marks and dullness | Dullness and glow |
| Who it suits | Anyone targeting marks and uneven tone | Those wanting a simpler glow serum |
If you already loved the original, the plus version adds glutathione to target tone more intensively. For spot-focused care within the same line, the numbuzin No.5 Goodbye Blemish Serum is another option, and the No.5+ Glutathione Vitamin Toner Pads make an easy companion step.
Which vitamin C serum is best? Vitamin C vs niacinamide
The best vitamin C serum is the one you will use every morning with sunscreen. Pure, high-strength vitamin C serums like the COSRX The Vitamin C 23 Serum give a concentrated radiance boost but can tingle. Multi-active serums like No.5+ spread the work across several gentler ingredients. As for vitamin C or niacinamide: vitamin C is the stronger antioxidant and glow-booster, while niacinamide is better for oil, pores and barrier comfort. No.5+ gives you both; if you want niacinamide on its own, the ANUA Peach 70% Niacinamide Serum is a gentle choice.
numbuzin No.5+ serum price in Pakistan
It comes in a single 30ml bottle, and two or three drops per use means it lasts around two months of daily use. The current price is shown live on this page, and you can pay with cash on delivery.
Original vs fake numbuzin No.5+ serum: how to check
numbuzin is a fast-growing brand, and fast growth brings imitations. The original has crisp printing on a sealed box and bottle, matching batch and expiry codes, and a smooth serum that spreads easily without a strong perfume. Thin, watery liquid, separation or a harsh smell are warning signs.
Where to buy original numbuzin in Pakistan
Buy from a store that imports directly. YESBEAUTY is an authentic seller of numbuzin in Pakistan, and this serum is sourced directly from numbuzin's official distribution channels in Seoul, Korea. As part of the Korean Skincare group, we have served more than 200,000 customers, and any product found to be inauthentic is covered by our 7-day return guarantee. Read our Authenticity Promise to see how we check each delivery.
Best serum for dark spots and dullness in Pakistan: where No.5+ fits
For a single serum that tackles marks, dullness and hydration together, No.5+ is a strong pick. If ageing is also on your mind, add a retinal product such as the celimax Vita-A Retinal Shot Tightening Booster on alternate nights. Explore our dark spots collection, our glutathione edit, our vitamin C range and the full numbuzin page.
Using brightening serums in Pakistan's sun
UV exposure is the biggest reason marks linger, so pair this serum with a high-SPF sunscreen and reapply when you are outdoors. Keep the bottle tightly closed and away from heat and direct light, as vitamin C ingredients are sensitive to both, and use it within the period shown on the pack.
Can men use it?
Yes. Its light texture suits men with oily skin or uneven tone from time outdoors, applied after cleansing and before sunscreen.
Can teenagers use it?
Older teens dealing with marks left by breakouts can use it once a day, ideally in the morning before sunscreen. Keep the rest of the routine simple: a gentle cleanser, a light moisturiser and SPF. Younger skin rarely needs several brightening actives at once.
Does it help with melasma?
Tranexamic acid and niacinamide are popular choices for stubborn patches, and many people with melasma include serums like this in their routine. Melasma is hormonal and tends to return with sun and heat, though, so a dermatologist should guide treatment. Use this serum as daily support rather than a stand-alone fix.
Building a simple brightening routine around No.5+
You do not need a ten-step routine for brighter skin. A short, consistent one works better and is easier to keep up through summer.
A four-step morning routine
Start with a gentle cleanser, use a hydrating toner, apply No.5+ and then moisturiser, and finish with a generous layer of sunscreen. On hot, humid days a gel moisturiser is enough; in winter, choose something richer.
A simple evening routine
Double cleanse if you wore sunscreen or makeup, then tone and apply No.5+ or your night treatment. On nights you use a retinoid, skip the serum and moisturise well. For the delicate area under the eyes, the numbuzin No.9 eye cream is a targeted option, used on nights you are not applying other retinoids.
How to store it
Keep the cap tightly closed after each use and store the bottle in a cool cupboard rather than a sunny windowsill or a hot car. If the colour or smell changes noticeably, it is time to replace it.
