Most of us know that retinol is a proven solution for dull and lackluster skin, but did you know that all retinol is not created equally? From packaging to potency, there’s more to effective skin cell turnover than just slathering this on. We grill dermatologist extraordinaire, Dr. Robyn Gmyrek, about what retinol actually is, how to use it without irritation, and which products are best for our faces and our budgets.  Listen for the ultimate guide to retinol and spoiler alert – yes, you DO need it in your skincare routine.