Welcome to Law.com Class Actions: Critical Mass, a weekly briefing for class action and mass tort attorneys. L'Oréal and Burger King are among companies targeted in new class actions alleging consumers didn't know their products had PFAS, or "forever chemicals," in them. Months after rejecting a request from the Girardi Keese trustee to expand an investigation to include the firm's former lenders, a bankruptcy judge changed his mind, citing "additional evidence." Find out who was appointed to spearhead new lawsuits over chemotherapy drug Taxotere.

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New Lawsuits Say 'Forever Chemicals' Are In Cosmetics, Food Packaging

A growing list of consumer products, from Big Mac wrappers to waterproof mascara to menstrual underwear, are the targets of new lawsuits alleging consumers didn't know they had PFAS in them.

PFAS, or polyfluoroalkyl substances, are often referred to as "forever chemicals" and have been linked to a host of illnesses, such as cancer, hypertension and thyroid disease. Previous litigation targeted nonstick cookware, drinking water and firefighting foam with personal injury claims, but the new class actions all seek economic damages for consumers and focus on cosmetics, clothing and food packaging. So far this year, more than a dozen lawsuits have been filed against L'Oréal, CoverGirl, Revlon, The Clorox Company's Burt's Bees, McDonald's, Burger King and Gamer Advantage, which makes an anti-fog spray for eyeglasses.