The term retinol describes a vitamin A derivative that can help unclog pores, boost collagen to reduce fine lines, and speed cell turnover to even out discoloration and smooth the skin. There are lots of options out there so know what you're looking for. Time released and microencapsulated are great options to help decrease the chances of irritation. A 1% clinical strength is highly effective but you may want to ease in slow. Partnered with a "buffer" cream is even better to