Zasada, Malwina, Elzbieta Budzisz, and Anna Erkiert-Polguj. "A clinical anti-ageing comparative study of 0.3 and 0.5% retinol serums: A clinically controlled trial." Skin pharmacology and physiology 33.2 (2020): 102-116.
Retinol, a Vitamin A derivative, is a versatile ingredient that addresses several types of breakouts. It speeds up cell turnover, which helps prevent dead skin cells from clogging pores, making it effective for both non-inflammatory acne (like blackheads) and inflammatory acne (like pustules and cystic acne). Retinol also reduces excess oil production and helps fade acne scars over time. While it’s highly effective, retinol can initially cause some dryness or irritation, so it’s best introduced gradually into your routine.
See how Retinol also helps with
Nyirady, R M Grossman, M Nighland, R S Berger, J L Jorizzo, Y H Kim, A G Martin, A G Pandya, K K Schulz, J S Strauss, J. (2001). A comparative trial of two retinoids commonly used in the treatment of acne vulgaris. Journal of Dermatological Treatment, 12(3), 149–157.