Why doesn't my foundation last?

All of my Youtube addicts out there need to go follow GossMakeupArtist right now! He is truly an amazing makeup artist, and one of the few beauty gurus on Youtube that really knows his stuff! I have been following this man since day one!

I was skimming through his videos this evening and came across this one. I can't tell you how many times a day I get asked the question, "Why doesn't my makeup last?"

Here, my friends, is your answer...