I didn't expect to find a Korean cosmetics shop in Mesa, but not only does Toktok have a convenient location, they also have a wide array of products to choose from! The staff really knows their stuff and are more than happy to answer any of your questions.
There is not a sign you can see from the parking lot which caused me to spend a few extra minutes making sure I was at the right place. I didn't see the store from the parking lot and only found it by parking and walking the perimeter of the Asian market. You can also access the shop from inside the market which I was not aware of before I made my trip (my fault since other reviews on here mention it).
Definitely going back!