In a new investigation of 785 name-brand sunscreens, the Environmental Working Group (EWG) found widespread evidence that many products on the market are not safe and effective, including one of every eight high-SPF sunscreens that does not protect from UVA radiation.

Our comprehensive scientific review indicates that 83% of 785 sunscreen products offer inadequate protection from the sun, or contain ingredients with significant safety concerns. Only 17% of the products on the market are both safe and effective, blocking both UVA and UVB radiation, remaining stable in sunlight, and containing few if any ingredients with significant known or suspected health hazards.

Fully 12% of high SPF sunscreens (SPF of at least 30) protect only from sunburn (UVB radiation), and do not contain ingredients known to protect from UVA radiation, the sun rays linked to skin damage and aging, immune system problems, and potentially skin cancer.