Cos De BAHA S4 Serum is a skincare product that is likely formulated to target skin concerns such as uneven skin tone, blemishes, and skin texture. The "S4" in the name may refer to a specific combination of active ingredients designed for skin smoothing, soothing, and brightening.

Typically, a serum with this kind of naming might contain ingredients like Salicylic Acid, Niacinamide, Vitamin C, or other actives known for their ability to promote skin clarity and even out skin tone. These ingredients can help with exfoliation, reducing redness, brightening dark spots, and improving overall skin texture.

Since there isn't an exact formulation breakdown readily available, it’s best to check the product label for details. Here’s a general idea of what you might expect from such a serum:

• Salicylic Acid: Helps to exfoliate the skin, unclog pores, and reduce acne breakouts. It is particularly effective for oily and acne-prone skin.
• Niacinamide: Known for its brightening effects, it helps even out skin tone and reduces inflammation.
• Vitamin C: Often included in brightening serums to help lighten hyperpigmentation and boost the skin's radiance.

This serum would likely target concerns like acne, dark spots, and texture irregularities, making it a good option for individuals looking to achieve smoother, clearer, and more radiant skin.

Key Features (Hypothetical based on common active ingredients for such serums):

• Salicylic Acid for exfoliation and acne treatment.
• Niacinamide for brightening and reducing redness or inflammation.
• Vitamin C for skin radiance and hyperpigmentation.
• Targets acne, dark spots, and skin texture.
• Suitable for oily, acne-prone, and sensitive skin.

Cos De BAHA S4 Serum is made in South Korea.