Salicylic Acid Bha 4% Serum - 30ml

COS DE BAHA - Salicylic Acid Bha 4% Serum - 30ml is a K-beauty face serum centered on salicylic acid BHA. The product title confirms the 4% BHA positioning, so it is best understood as a targeted active serum rather than a general hydrating essence.

Why It Stands Out

The formula focus is unusually clear from the name, which helps shoppers compare it with gentler daily serums. For oily or congestion-prone routines, a named BHA step can be easier to schedule than using multiple exfoliating products at once.

Best For

Best for users managing rough texture, visible pore buildup, or excess-oil routines. It is a better match for experienced active users than for someone wanting only a basic moisturizer replacement.

How to Use

Apply a small amount after cleansing, preferably at night at first. Follow with moisturizer, avoid stacking with several exfoliating acids in the same routine, and use sunscreen during the day.

Benefits

• Salicylic acid BHA focus is verified in the title.
• Supports a more refined-feeling texture routine.
• 30ml serum format is easy to dose gradually.
• Fits targeted care for oily or clogged-looking areas.

Good to Know

Start slowly and pause if the skin feels over-exfoliated. Do not use around the eye area, and patch test before adding it to a full routine.

Key Specs

• Brand: COS DE BAHA
• Product type: Face serum
• Category: Face Serum, K-Beauty
• Active focus: Salicylic Acid BHA 4%
• Size: 30ml