Consumers rely too much on sunscreen SPF values, confused by terminology.

Consumers may need more help navigating the sunscreen aisle.

A new Northwestern Medicine study found that many people seem to be confused by sunscreen terminology.

Only 43 percent of people surveyed understood the definition of sun factor protection (SPF) and only seven percent knew what to look for on a label if they wanted a sunscreen that offers protection against early skin aging.

Details of the study were published in the journal JAMA Dermatology.