Cos De BAHA Salicylic Acid Serum — most salicylic products sit around 2%. At 4%, this serum is doing serious pore work, and it does it in a leave-on format rather than a rinse-off wash — which is where BHA is actually effective, since it needs contact time to travel into the pore.
Best for
Blackheads, closed comedones, and oily skin with persistent congestion.
How to use Cos De BAHA Salicylic Acid Serum
Apply at night to clean dry skin, starting twice weekly. Do not layer over another exfoliating acid. Sunscreen the next morning.
Careful with
Dry or sensitive skin — at this strength, the 4% will be too much for many people. Consider a 2% BHA toner instead.
What is in it
BHA
Salicylic acid is oil-soluble, and that single property is why it is the standard answer for blackheads and congestion. It travels into the pore lining rather than working only across the surface, clearing the mix of sebum and dead cells that blocks it. It is also mildly anti-inflammatory, so it tends to calm the redness around a blemish rather than aggravate it. Most well-judged leave-on products sit around two percent. Background reading on salicylic acid 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, APLB Zinc Niacinamide Facial Cream and Acwell Licorice pH Balancing Cleansing 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
Exfoliating acids increase sun sensitivity, so daily sunscreen matters more than usual while you are using this. Do not layer it with a retinoid on the same night until you know how your skin handles each on its own.
Common questions
Is Cos De BAHA Salicylic Acid 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.
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.
Does the Dhaka climate affect it?
Heat and humidity shorten the working life of most cosmetic formulas, and actives like vitamin C and retinoids are the first to suffer. Keep the product capped, out of direct sun, and away from the hottest corner of a bathroom. A cool cupboard is better than a windowsill, and better than a fridge for most textures.
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