But one dermatologist said it is not enough.
"You are covered to some degree but it's not the ultimate coverage," said Dr. Coyle Connolly.
First off, he said there is a lot of variability including different strengths.
Second, he said you probably don't use as much foundation as you would sunscreen.
But, with using makeup only, your face is covered for a while but the sun could still be hitting your neck, ears and arms.
"It's putting you at risk for future skin cancer development and the development for aging skin such as fine lines, wrinkles and age spots," said Dr. Connolly.
He recommends using sunscreen with an SPF of at least 30, broad spectrum, before putting on makeup.
"You really do want to layer them," he said.
While powders with SPF may not offer the best coverage alone, they are good to use as a supplement throughout the day.