The key to a natural, no-makeup look is selective concealing. Far too often, people try to use foundation to hide every last blemish, mark or freckle without realizing that it has a different purpose. Even the most high coverage of foundation is really only meant to even out the general tone of your skin. For picture-perfect skin, concealer is your best friend.
I'm a huge proponent of using coverage only where you need it -- especially for a product as pigmented as concealer. There's no point covering up skin that's already even and perfect, it's what you're striving for!
Using your products selectively takes more time, but if there's one part of your makeup you should pay special attention to, it's your skin.
My first step in any concealer routine is to correct any marks. Personally, my hyperpigmentation is a similar hue to my undereye circles (yay, Asian genetics), so I use the same brightener on my under eyes as I do on any scarring. We'll get into product another time, but my favourite way to cover up individual blemishes is to pinpoint conceal with a tiny brush. My favourite is Make Up For Ever 2S -- a miniscule eyeliner brush that they don't make anymore. EcoTools Detailed Lip Brush is slightly larger but comes to a fine point, perfect for covering blemishes and getting into the corners of your eyes.
After I've canceled out any darkness, I'll use a MAC 239 to pick up a concealer that matches my skin and dot it over any corrected areas. The flat side of this brush lays down the product beautifully without disturbing your colour-correcting work. his is also a great opportunity to go over any larger patches of discolouration that your foundation didn't quite cover.
To give your concealer a truly airbrushed, flawless finish, grab a Real Techniques Domed Crease Brush; I have yet to come across any other brush that blends cream products this well or this quickly. I have two.
Check out some of my favourite concealers here.