The podcast episodes discuss the use of retinoids in skincare, including the different types (retinol, retinal, retinoic acid) and their various roles and effects on the skin.

The episodes provide insights into the science behind retinoids, how they work, and the importance of proper usage and managing potential side effects, especially for sensitive or young skin.

The episodes also highlight the connection between retinoid use and addressing underlying skin health issues, such as vitamin deficiencies, to achieve optimal results.