Concealer is kind of like a thicker foundation with different colored under tones to mute red or blue area's on your face such as a blemish or under your eyes
You can useally find concealer in 5 different forms such as
Stick
Pencil
Powder
Cream or potted concealer
Liquid or wand
Stick concealers are just like a lip balm or lip stick except its skin colored.
Coverage - This concealer is useally pretty full coverage and is good for everywhere on your face
Best to apply with - fingers, Rub it on from the stick to your face then blend with your fingers.
Good for - Under eye circles, acne, any dark areas such as around your mouth, eye's and nose
How easy is it to apply - Stick concealers are one of the easiest to apply and blend and when done correctly will look natural and won't sink into fine lines
For stick concealers I recomend- Maybeline cover stick