Of course you do! This crucial groundwork and vital scaffolding ensures a strong foundation for your house so that is durable and it lasts. (And is troll-free.)
Cosmetics are no different. Although I am prepared to concede that generally speaking, there is less concrete.
Almost everything you do to your skin, body, face and hair needs to be done with proper preparation and adequate “scaffolding”, or it will fall apart as soon as it’s tested by the elements (heat, humidity, wind, dryness) or the clock, or your penchant for high-energy jazz ballet when you go out on a Friday night.
In short: You have to do some groundwork to ensure all your hard work lasts.
It sounds like a pain in the ass, but after seeing Makeup and Hair geniuses backstage manage it in mere moments, and doing it myself almost unthinkingly for many years after being taught how to by those fabulous maniacs, and seeing the tremendous pay off when I do bother to put in the extra two minutes/layer of product, I strenuously advise you consider it.
Allow a dame to illustrate with some examples, won’t you?
1. To ensure that flawless, fantastic foundation lasts:
Apply primer on top of your skin care. (If you have very oily skin or large pores, be sure to choose a primer that mattifies – will make a big difference to shine. If you have normal skin, you can use any primer.) Wait a minute and then apply your foundation. Even if you use tinted moisturiser, a product with about as much staying power as Mr. KRIS HUMPHRIES. Apply the rest of your makeup – blush, bronzer, eye shadow etc. Then with a large, fluffy brush, lightly dust your entire face with loose powder, or your mineral loose foundation, to set it all in place for the day. (If you have oilier skin, you might prefer pressed powder instead.)