Thought  I would share this with anybody interested in learning just a small amount of new but good knowledge about the facial muscles and what they do etc.  If you are going to perform facials, you might as well have some knowledge in your pocket as to why you are doing what you are doing, other than just applying foo foo lotions and potions ...

https://www.youtube.com/watch?v=Nknsl8_ODqU&t=7m