Numbuzin No.5 Vitamin Serum — Numbuzin’s No.5 line is the brightening range, and this is its most concentrated vitamin formulation — aimed at dullness and tone rather than the blemish work its sibling handles.
The texture is light and layers cleanly, which matters for a morning product that has to sit under sunscreen.
Best for
Dull skin, uneven tone, and routines wanting a vitamin serum that is less temperamental than straight L-ascorbic acid.
How to use Numbuzin No.5 Vitamin Serum
Apply in the morning to clean skin before moisturiser, then sunscreen. Can be used at night as well.
What is in it
Vitamin C
The trade-off with vitamin C is potency against stability. L-ascorbic acid has the strongest evidence behind it but degrades quickly and needs a low pH that some skin finds uncomfortable. Derivatives are gentler and last longer in the bottle, at the cost of converting less efficiently once applied. Either way, store it away from light, close it properly, and use it in the morning where its antioxidant effect earns its keep. Background reading on vitamin C if you want the chemistry behind it.
What to use it with
Seal this in with a moisturiser and apply it to skin that is still damp from a toner — both steps make a measurable difference to how much of the serum stays where you put it. From the rest of our range, Medicube AGE-R Glutathione Glow Capsule Cream and SKIN1004 Madagascar Centella Toning Toner are sensible companions, and both are stocked with the same cash-on-delivery terms.
Where it fits in your routine
A serum goes on after cleansing and toning, while skin is still slightly damp, and before anything heavier. That order matters more than people expect — the thinnest, most concentrated layer needs direct contact with skin, not a film of moisturiser in the way. Give it thirty seconds to absorb, then seal it in with a cream. If you are using more than one serum, the lighter one goes first.
Before you start
Keep this away from light and heat, and close it properly. Vitamin C oxidises with exposure — if the liquid turns deep yellow or brown, it has lost most of its potency and is worth replacing.
Common questions
Is Numbuzin No.5 Vitamin Serum authentic?
Yes. Euros Belle stocks sealed, unopened units sourced through the brand’s own distribution, and we do not sell testers, decants or refilled packaging. Every order is checked before it leaves us, and you are welcome to inspect the seal at the door before paying.
Can I pay cash on delivery?
Cash on delivery is the only payment method we offer — there is nothing to pay in advance and no card details to enter anywhere. You pay the delivery agent when the parcel reaches you. Inside Dhaka delivery is ৳70 and takes one to two days; outside Dhaka it is ৳130 and takes three to four.
Will it suit my skin type?
Most skin types tolerate it, though anyone with reactive or recently over-exfoliated skin should introduce it slowly. If your barrier is currently compromised — stinging, tightness, unusual redness — repair that first with something simple before adding anything active.
Can I order without using the website?
Yes. Some customers prefer to confirm by message first, so every product page carries WhatsApp and Messenger buttons that open a chat with the product and price already filled in. You can also call the hotline on 01795-081385 during business hours. The order is the same either way, and so is the price.
What if it arrives damaged or wrong?
Check the parcel before you pay — that is the practical advantage of cash on delivery. If a seal is broken, a bottle has leaked or the item is not what you ordered, refuse the delivery and tell us, and we will replace it or cancel the order. Cosmetics that have been opened and used cannot be returned for hygiene reasons.
How fresh is the stock?
We buy in small, frequent batches rather than holding large quantities, so what reaches you is well within date. Batch and expiry markings are printed on the packaging and we do not remove or cover them. If anything you receive is close to expiry, tell us and we will replace it.
More Serums & Ampoules · Browse all Numbuzin products
Reviews
There are no reviews yet.