Cos De BAHA Salicylic Acid BHA 4% Serum (S4) 30ml

Clogged pores, persistent blackheads, and sudden breakouts are common struggles in Dhaka, where high humidity and urban pollution often trap oil and debris against the skin. The Cos De BAHA Salicylic Acid BHA 4% Serum (S4) 30ml is a targeted treatment designed to address these concerns by deep-cleaning the skin's surface and pore lining. This Korean serum provides a concentrated approach to managing congestion, making it a practical choice for those navigating a tropical climate where skin can feel heavy and oily.

What is Cos De BAHA Salicylic Acid BHA 4% Serum (S4) 30ml?

Cos De BAHA Salicylic Acid BHA 4% Serum (S4) 30ml is a potent exfoliant that uses a high concentration of Salicylic Acid to penetrate deep into the pores. It works by dissolving the excess sebum and dead skin cells that lead to acne and uneven texture, helping to clear congestion and support a smoother complexion.

How Salicylic Acid works

Salicylic Acid is a BHA (Beta Hydroxy Acid) that is oil-soluble, meaning it can bypass the skin's surface oils to enter the pore itself. Once inside, it breaks down the "glue" holding dead skin cells and sebum together, effectively unblocking the pore. This mechanism is essential for managing blackheads, whiteheads, and the inflammatory bumps associated with oily, acne-prone skin.

To balance the potency of the 4% Salicylic Acid, the formula incorporates soothing agents like Aloe Vera. This helps mitigate the potential dryness or irritation that can occur when using high-strength exfoliants, ensuring the skin remains calm while the active ingredients work on congestion. By regulating oil-related buildup, it helps maintain a clearer appearance even during humid months.

Who it suits

• Oily and combination skin types prone to frequent breakouts
• Those struggling with visible blackheads and enlarged pores
• Skin with rough texture or frequent congestion caused by pollution and sweat
• Individuals looking for a targeted treatment for post-acne blemishes

Because of the high 4% concentration, those with very sensitive or dry skin should introduce this serum slowly. We recommend a patch test on a small area before full-face application.

How to apply it

1. Cleanse your face thoroughly and pat dry — applying BHA to damp skin can increase irritation
2. Apply 2–3 drops of the Cos De BAHA Salicylic Acid BHA 4% Serum (S4) 30ml to the affected areas or the entire face, avoiding the delicate eye area
3. Wait a minute for the serum to absorb before layering your next product
4. Follow with a lightweight, non-comedogenic moisturiser to prevent dehydration
5. In the morning, always apply a broad-spectrum sunscreen; exfoliation makes skin more sensitive to the sun, and UV protection is vital in Bangladesh

The bigger picture

When using a high-strength active like this, consistency is more important than frequency. It is better to use this serum once or twice a week and gradually increase usage as your skin builds tolerance, rather than over-applying and compromising your skin barrier. Real results in pore clarity and texture take time — expect to see the most significant changes after several weeks of regular, disciplined use. Remember, a clear complexion is built on a foundation of hydration and sun protection.

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.