We talk about retinol a lot. That’s because it’s the most popular retinoid that can be used in cosmetics. Most are well aware of the anti-aging and hyperpigmentation benefits but there are still a lot of questions on how to properly use retinol. In fact, one of the most common questions we get is, “Can I use retinol in the daytime? Does the sun destabilize retinol and thus what I’ve applied on my face is now useless?” Let’s dive into the science!