Do You Actually Need Primer?
Probably not every day. Maybe not at all. Here's what primer really does, the three days it earns its step, and what to try before buying one.
Probably not every day. Maybe not at all. Here's what primer really does, the three days it earns its step, and what to try before buying one.

Primer is sold as required paperwork. The form you have to file before foundation is allowed to begin. It isn't. Primer is a specialist. For some faces, on some days, it solves a real problem well. For most faces on most days, it's an extra layer doing a job your moisturizer, or nothing at all, was already doing.
Strip away the words on the tube and primers do one of three things. They grip, which helps makeup last longer. They fill, sitting in pores and fine lines so skin reads smoother. Or they control oil for a few extra hours.
That's the whole menu. "Radiance-boosting" primers are moisturizer with shimmer in it. Which is fine, if shimmer under your foundation is a thing you want. Just know that's what you're buying.
One: the long day. A wedding, a conference, anything where touch-ups won't happen and the makeup needs to last twelve hours. A gripping primer really does extend wear.
Two: the oily T-zone that eats makeup by noon. An oil-control primer, used only where you're oily, can buy you the afternoon.
Three: texture you'd like softened for photos. Visible pores, or fine lines that foundation keeps finding. A filling primer blurs these better than more foundation ever will. More foundation is usually what made them show.
"Primer is a specialist, not a toll booth on the way to foundation."
Buy for the specific job. Oily T-zone gets an oil-control formula, used only where you're oily. A big event gets a gripping formula all over. Texture gets a filler, used only where the texture is. There is no prize for using any of them daily.
And price is truly optional here. Primer is a category where the drugstore versions and the counter versions do the same chemistry. If you love the expensive one, love it freely. Just know you're paying for the experience, not a different result.