Latest / Skinfluence with Dr. Dustin Portela

Episode 17: The Truth About Tretinoin, Retinol & Results
Retinoids are one of the most powerful tools in skincare—but they're also one of the most misunderstood. In this episode, Dr. Dustin Portela and PA Austin Lee break down everything you need to know: the science behind how retinoids work, the real difference between retinol and tretinoin, how to build tolerance, and why consistent use matters more than strength.
They also dive into side effects (like dryness and "the purge"), debunk myths around skin thinning, and explain who shouldn't use retinoids (hint: rosacea and pregnancy need special care). Plus, they introduce a new medical-grade…
The skinny
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