Depending on the type, strength and depth of the chemical peel, chemical peels can be used for active acne to reduce clogged pores and PIH. Chemical peels result in accelerated exfoliation of the skin induced by the peel acids.
This in turn signals the cells within the skin to regenerate faster, resulting in increased cell turnover, improved skin texture, reduction in pigmentation and prevent pores from being clogged.
For acne-prone and oily skin types, superficial chemical peels like Alpha Hydroxy Acids (AHAs) are useful in increasing cell turnover to achieve a brighter complexion, reducing PIH and clogged pores. Beta Hydroxy Acids like salicylic acid peels are also very useful for oily, congested, acne-prone skin as they tend to penetrate slightly deeper in oily skin due to its lipophilic nature.
Jessner's peel, which combines a few different types of acids and comes in different strengths, is also useful as it combines the strengths and benefits of different acids.
Chemical peels start generally from $150 onwards per session. There are other modalities of treatments that you can consider for treatment of acne and PIH marks, such as topical creams, oral supplements, LED light therapy and lasers.