When I was a working makeup artist, by far the most common request I received for foundation was for something that “felt light” on the skin and “didn’t look” like heavy foundation.
Tinted moisturizers and BB creams have soared in popularity over the years. I completely understand the allure of a product that applies quickly, blends easily and makes skin more even.
By not covering up spots, redness or other skin discolorations, skin remains uneven instead of having a visually smooth base. Then, when you put more color on top of uneven skin, it will look patchy.
I do my eye makeup first, before foundation, so I make sure to go a bit heavier with my moisturizer so that my skin still has a slightly damp feeling when I do apply my base makeup.