Sephora sells a Sun Safety Kit every year, which includes a ton of sample- and full-sized sunscreen and sun-related products, neatly packaged in a cute, reusable bag. It’s a great way to try out a bunch of sunscreens that have been popular among Sephora’s customers, without having to buy expensive, full-sized packages. You can also throw these mini-sized products in your bag, which makes them really great for retouching your sunscreen when you’re out and about.

Imagine that you’re outside in the middle of August. Everything is sticky, and the air so humid that you feel like the whole world took a hot shower and forgot to open the bathroom door to let the steam out. You’ve been outside for about two hours, which means that you need to reapply your sunscreen. Yessss! You’ve been waiting for this moment…because applying sunscreen feels like stepping into store that has A/C on full blast. Wait, what?

Let’s dive into one of my favorite skincare products of all time…sunscreen! I’ve already shared my paranoia about leaving the house without a layer of sunscreen on my face. Today, let’s explore one of the hot topics when it comes to sunscreen: physical vs. chemical sunscreen. What the heck is the difference? And does it even matter?