A sunscreen scandal in Australia is continuing to grow, with 18 products now pulled from shelves in the skin cancer hotspot over safety concerns.
Analysis by a consumer advocacy group in June found several popular and expensive sunscreens did not provide the protection claimed by their makers.
One product, Ultra Violette's Lean Screen Skinscreen, is supposed to offer a skin protection factor (SPF) of 50+ but instead returned a result of SPF 4 and was voluntarily recalled in August.
An investigation by the medicines regulator has now warned about 20 more sunscreens from other brands, which share the same base formula, and raised "significant concerns" about a testing laboratory.