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Cos de BAHA Salicylic Acid 4% Serum (S4)

Cos de BAHA Salicylic Acid 4% Serum (S4)

30ml · BHA serum

1,390 ALL · €13.90

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Congested pores and stubborn blackheads need BHA — and Cos de BAHA S4 delivers 4% salicylic acid in a no-frills serum that does exactly what it says. Salicylic acid is oil-soluble, so it reaches inside pores to dissolve sebum and dead skin. Use it on the T-zone, chin, or anywhere breakouts cluster. Not the prettiest bottle in K-beauty, but one of the most effective budget BHA serums you will find.

Helps with

  • 4% salicylic acid clears pores and blackheads
  • Reduces breakouts on oily and acne-prone zones
  • Smooths rough texture on nose and chin
  • Targeted treatment — apply only where needed

Cos de BAHA S4 is a cult K-beauty BHA serum — 4% salicylic acid at an accessible price, widely recommended for oily skin routines.

Skin types·Oily, combination, acne-prone; avoid on dry or broken skin

Formulated with

  • — Salicylic acid 4%

    BHA penetrates pores to clear congestion

  • — Niacinamide

    Calms and brightens post-BHA

  • — Zinc PCA

    Helps control excess oil

  • — Panthenol

    Reduces irritation from acids

How to use

1. After cleansing, apply thin layer to T-zone or affected areas. 2. Start 2–3 times weekly; increase if tolerated. 3. Do not use on same night as retinol (alternate). 4. SPF mandatory every morning.

Goes with

Cos de BAHA Salicylic Acid 4% Serum (S4)

1,390 ALL · €13.90