COSRXThe AHA 2 BHA 2 Blemish Treatment SerumIngredients

Water is a great solvent. It’s neutral and doesn’t provide any strong positive or negative effects. It just helps components to mix better and to transport active components.

Propanediol is a good solvent, emollient and humectant. It helps to moisturize the skin and prevent moisture loss. In haircare products, it conditions hair and improves absorption of the product.

Polysorbate 20 doesn’t have any notable skin benefits but is used in cosmetics quite often. Manufacturers use it for formulation purposes. It improves the scent, texture, and feel of the product.

Glycolic Acid is the most researched AHA with proven efficiency and it’s a super powerful component. It’s a great exfoliator, meaning it helps to remove dead skin cells preventing bacterial growth, and make your skin look fresh and smooth. It helps to remove dark spots and areas, making skin tone even. But the most serious reason for using this component is that it helps to produce collagen, which is very important for keeping your skin healthy. This is what makes Glycolic Acid so special. Pay attention, that using any AHA makes your skin more UV sensitive. It’s very important to use good sunscreen after applying AHA.

Salicylic Acid is an amazing component for oily skin. It’s a famous BHA that chemically exfoliates dead cells, kills bacteria, and prevents acne. It works as a strong pores cleanser. AHAs are not effective for removing sebum from pores, while BHAs are leaders in this space. Salicylic Acid also helps to shrink pores, remove acne scars and make skin tone even. Pay attention: concentration matters! This ingredient is rather aggressive. It can lead to irritation in high concentrations. If your skin has never seen this component before test the product first.