Cos De BAHA Salicylic Acid BHA 4% Serum (S4) is a leave-on exfoliating serum for oily skin, rough texture and clogged-looking pores. The stated 4% salicylic acid concentration calls for measured use alongside a simple moisturising routine.
Why choose Cos De BAHA Salicylic Acid BHA 4% Serum (S4)?
- 4% salicylic acid: A stated BHA level for exfoliating care.
- Congestion focus: Helps care for buildup that makes pores look more noticeable.
- Smoother feel: Exfoliation helps remove dead surface skin.
- Supporting ingredients: Niacinamide and aloe complement the acid blend.
Is it right for you?
Good for: Oily, congestion-prone skin already comfortable with exfoliating products; use cautiously if your skin is dry or easily irritated.
For hydration on evenings without exfoliation, explore COSRX Snail 96 Mucin Power Essence.
Good to know: 30 ml · S4 version · 4% salicylic acid · Leave-on evening exfoliant
Key ingredients: Salicylic acid, niacinamide and aloe.
How to use
Patch test first. Apply a small amount after cleansing in the evening, avoiding the eyes, lips and broken skin, then follow with moisturiser. The brand recommends two or three evenings a week; start less often if needed.
Leave on rather than rinsing. Use sunscreen daily and keep other exfoliating acids or retinoids on separate evenings while introducing it. Stop if persistent burning or irritation occurs.
FAQ
What is the price of Cos De BAHA Salicylic Acid BHA 4% Serum (S4) in Bangladesh?
The 30 ml pack is currently ৳1,280 at Euros Belle. Prices may change.
Is this the same as Cos De BAHA’s 2% BHA serum?
This listing is S4, labelled 4% salicylic acid. The brand’s SS 2% BHA serum is a separate formula.
Can I combine it with another exfoliating toner?
Start with one exfoliating product so you can assess your response. Adding another acid step can increase dryness and irritation, especially with this 4% formula.
Shop more Cos De BAHA products or browse all serums and ampoules.
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