Beauty with Mi, hosted by Refinery29's beauty writer Mi-Anne Chan, explores the coolest new trends, treatments, products, and subcultures in the beauty world. Never miss an episode by subscribing here.

Dispensing the final pump of a serum or hitting the bottom of a bronzer pan tends to elicit one of two responses: worry or satisfaction. I, being cosmetically blessed with a job in the beauty industry, fall into the latter camp. When it's part of your job description to test out the latest and greatest makeup, skin care, and hair care items, it's not every day you empty out a bottle of shampoo or a tube of eyeliner. When you do, it's cause for celebration — or, at the very least, documentation.

I've been collecting what the YouTube community has dubbed "empties" for the past six months and have 16 amazing products to show for it. Wondering which ones I used to the very last drop? Press play above to find out.