First of all: you must invest in a good foundation even if the price is a little high (as opposed to powder for example that does not necessarily require a major investment. I really like those by Dior. In fact, it’s the quality of the pigments that enables to capture the light and produces radiant skin.
Otherwise, here is my technique for a great complexion: I apply a little Nuxe oil on my skin before applying my foundation on the T area ( brow + nose + chin).
Also discover 5 tips to have an amazing complexion.