The worst mistake women make in applying foundation is to cover their entire face with the stuff. They end up with a mask-like, unnatural look. Here's the best way to apply foundation or tinted moisturizer (a great alternative to foundation):
1. Start with a clean, moisturized face. Dab dots of concealer on undereye circles or blemishes. Tab the concealer into place (never rub). Makeup artist Bobbi Brown suggests using concealer before foundation because you won't use as much foundation if you conceal problem spots first. There's no real rule to whether you apply foundation or concealer first.
2. Dot foundation on red spots or uneven areas of skin (usually the chin, along or on the nose, under the eyes and the corners of the mouth). Again, do not cover the entire face, your goal is to achieve an even skin tone.
2. Moving from the inside of your face outward, blend the foundation into skin. You can use your fingers, a nylon brush or a wedge sponge.
3. Blend at the hairline and jawline to avoid the mask look.
4. Finish off the look with a powder. Carry blotting papers for any oils that creep up over the day, instead of packing on the powder.
My favorite foundation isn't foundation, it's tinted moisturizer from Laura Mercier. I think it's perfection. (Buy it online).