16 of 20 'SPF 50+' Sunscreens Failed Lab Tests in 2025
A 2025 lab test found most 'SPF 50+' sunscreens didn't hit their number, a reminder that label-vs-lab gaps are a global problem, not just an Australian one.
In June 2025, Australian consumer group CHOICE tested 20 SPF 50/50+ sunscreens and found 16 failed to meet their labeled SPF; one product, Ultra Violette Lean Screen, returned an SPF as low as 4 and was withdrawn in August 2025 after retesting.
Consumer-testing bodies stress that SPF is measured on human volunteers under controlled conditions, so some lab-to-lab variation is expected, but a result of SPF 4 against a labeled SPF 50+ is far outside normal margins and signals a genuine formulation or testing problem.
Questions we get a lot
How can an 'SPF 50+' sunscreen test as low as SPF 4?
SPF is verified by applying a measured dose to volunteers' skin and comparing how much UV it takes to redden protected versus unprotected skin. A reliable SPF 50+ should resist far more UV than a result of SPF 4 implies, so such a low reading points to a formulation or stability failure rather than ordinary test variation. In CHOICE's 2025 test, the worst performer was withdrawn after retesting.
Should I stop trusting SPF numbers entirely?
No, but treat the label as a claim that depends on correct formulation and adequate application. The CHOICE results show some products fall short, so favoring well-reviewed brands and applying a generous, evenly spread layer matters as much as the printed number. Reapplying every two hours and after swimming helps close the gap between labeled and real-world protection.
r/AsianBeauty: 'After the Purito mess I stopped trusting SPF numbers, now this Aussie test too. How do I even know what's protecting me?'