When you are looking for the perfect foundation, the second most important criteria may be the finish and the quantity of coverage. (Because you asked, the complete most significant criteria is color match.) I know that seems backwards, but once you determine what type of coverage and finished you are searching for inside a foundation, you can then narrow it down according to price point and color match.
Light
Under the “Light” category, you would find your tinted moisturizer products. These usually provide the sheerest amount of coverage. They will help balance out your skin tone and can not provide major coverage for dark circles or blemishes. They are the most forgiving regarding one match. I tend towards these, after which just add concealer where I need it. Two of the greatest I've tried are Laura Mercier Tinted Moisturizer Broad Spectrum SPF 20 and bareMinerals Complexion Rescue Tinted Hydrating Gel Cream which both are available in an excellent number of shades.
Medium
As implied, the “Medium” falls somewhere in between. If you are searching for decent coverage without needing to make use of a lot of concealer, this might be the best option for you personally. My hands-down favorite for this category is Dr. Jart+ Premium Beauty Balm SPF 45.
Full
“Full” coverage will mask over nearly any blemish or imperfection that you might be battling. There are a number of full coverage options, based on your texture preference. I recommend either Bobbi Brown Foundation Stick, Tarte Amazonian Clay 12-Hour Foundation SPF 15, or Benefit Cosmetics Hello Flawless Powder Foundation.
Finish – Matte or Dewy
If you want a truly matte finish, the best choice is either a long-lasting liquid or perhaps an actual powder. For a far more glowing finish, try something which includes moisturizing ingredients.
