The reality starlet - who is the face of Mark Hill Hair and In The Style - had us laughing, cringing and learning in the five minute clip in which she shows her Youtube subscribers how to apply a full face of make-up.
Charlotte, who rarely looks anything short of glam these days, started off by slathering on the foundation (Illamasqua and YSL, incase you were wondering) but instead of using a typical foundation brush or a beauty blender for a seamless finish, Char opted for a short bristle contour brush.
It was the first of many make-up mishaps but the CBB babe hoped any professional MUAs watching wouldn't berate her for it.
She said, "When it comes to a foundation brush, I actually need to buy one. If you are a make-up artist and are watching this, don't take the p**s, I know this isn't one."
As if watching poor Charlotte struggle with the angled brush wasn't funny/cute/awkward enough, she went on to clean her Real Techniques lip brush (which she wanted to use for contouring purposes) with her TONGUE.
Yep, you read that correctly.
She said: "I'm using a lip brush, and I'm cleaning it with my own saliva from my mouth, that's disgusting – I just need to get all the lipstick off it."
N.B. We do not advise you do this. Instead, invest in an alcohol based brush cleanser or give the bristles a clean using washing up liquid and warm water.
Even though Charlotte did commit a whole hoard of make-up sins did give us some valuable tips, and revealed that she only ever uses M.A.C's peachy powder blush in Modern Mandarin, rather than a red or pink because it looks "dead natural."
But we've gone on long enough. Watch the video for yourselves, here!
For exclusive competitions and amazing prizes visit Reveal's Facebook page NOW!