Santa Monica’s Honest Co., co-founded by actress Jessica Alba and L.A. entrepreneur Brian Lee, is under fire after sunburned consumers claimed on social media that the company’s sunscreen doesn’t work, CNBC reports. The company issued a statement Friday, saying its SPF 30 sunscreen meets regulatory standards, but an NBC Chicago investigation has found otherwise: The FDA requires sunscreen products to use up to 25 percent of zinc oxide, and NBC Chicago found the company had dropped the percentage of that ingredient in its sunscreen from 20 percent to 9.3 percent.

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