Cream feels great, but the jar packaging destroys the retinol
From the New York Times, "How Anti-Aging Creams Get Old Too Fast":<br /><br />"Dr. Elizabeth K. Hale, a clinical associate professor of dermatology at the NYU Langone Medical Center, said that numerous studies show that retinol and other anti-aging ingredients degrade when exposed to air and light.<br /><br />'If you’re looking for maximum efficacy from anti-aging ingredients, it’s probably best to use something like an airless pump,' Dr. Hale said. None of the retinoids Dr. Hale prescribes come in jars."





