Cos De BAHA Glycolic Acid 10% AHA Serum (G) 30ml

The Cos De BAHA Glycolic Acid 10% AHA Serum takes one of skincare's most effective resurfacing ingredients and delivers it in a simple, no-frills serum at an accessible price. At 10%, glycolic acid works on the look of dullness, rough texture, and uneven tone — but this is a genuine active, so the way you use it matters as much as the formula itself.

How glycolic acid works

Glycolic is the smallest of the alpha hydroxy acids, which lets it penetrate efficiently and get to work loosening the dull, dead cells clinging to the skin's surface. As those cells shed, fresher, smoother skin shows through, and over a few weeks the complexion looks brighter and more even. It can also help the products you apply afterwards absorb a little better. In Bangladesh's climate, where heat and pollution leave skin looking congested and tired, that gentle resurfacing can make a visible difference.

Who it suits, and who should wait

A 10% glycolic serum is best for normal, combination, and oily skin that is reasonably resilient and wants to address texture or dullness. If your skin is dry, sensitive, or currently irritated, start with a gentler exfoliant and work up to this, or use it less often. Anyone with a compromised or peeling barrier should hold off until the skin recovers.

Use it carefully

• Apply in the evening on clean, dry skin, two or three nights a week to start
• Build up frequency only if your skin stays comfortable
• Keep it away from the eye area, lips, and any broken or sensitised skin
• Do not layer it with retinol, vitamin C, or other acids on the same night
• Follow with a hydrating serum and moisturiser to keep the barrier comfortable

The sunscreen rule

Exfoliating acids make fresh skin more vulnerable to the sun, and Bangladesh's UV stays high all year. Daily, diligent sunscreen is non-negotiable while you use this — without it, you risk more dark spots, which undoes the very brightening you are working toward. Introduce the serum slowly, listen to your skin, and treat it as a steady habit rather than something to overuse.

Check on Delivery: Inspect the product carefully when you receive your order. Packaging can vary between batches while the product remains the same original item.

Storage: Store in a cool, dry place away from direct sunlight. Keep out of reach of children. Check expiry date on packaging before use.

Patch Test: If you have sensitive skin, apply a small amount to your inner wrist and wait 24 hours before full use. Stop use if irritation occurs.