Oily skin is prone to the buildup of dead skin cells, which can lead to clogged pores. To address this issue, the following types of acids are beneficial for regular exfoliation and pore cleansing:
★ Glycolic Acid: Products containing glycolic acid with a pH value of 3-4.5 can inhibit the growth of acne-causing bacteria. Long-term use of low concentrations (15%) of glycolic acid can also help improve post-inflammatory hyperpigmentation.
★ Salicylic Acid: Salicylic acid is highly effective in dissolving sebum and providing deep cleansing. It is particularly suitable for oily skin types. By purifying the oil within the pores, salicylic acid helps remove accumulated debris. It is also less irritating, making it suitable for sensitive skin.
★ Mandelic Acid: Long-term use of products containing mandelic acid, especially those with concentrations of 10% or higher, can serve as an adjunct in combating acne.