A good primer can make a world of difference to your makeup routine. The right match is capable of doing everything from erasing oversized pores and reducing redness to setting your makeup, soaking up shine, and even protecting your skin from damaging environmental agressors. But the difference between separating the best blurring primers from the not-so-great depends on choosing a formula that works for your specific skin type.
For instance, if you have dry skin, the wrong primer can leave you with flakey patches, resulting in the opposite effect that blurring primers are meant to provide. To keep your skin hydrated, look for a product that markets itself as a primer and moisturizer in one. Or, keep an eye out for multiple moisturizing ingredients in the formula, like hyaluronic acid, coconut water, and aloe.
On the opposite end of the skin spectrum, oily and acne-prone types have entirely different concerns. Overall, you'll want something that's oil-free and, ideally, has mattifying properties to help keep shine at bay. If you're prone to breakouts in addition to being oily, you can look for a primer that contains acne-fighting ingredients like tea tree oil or salicylic acid.