Three popular sun creams fail SPF test

Sun creams from three popular brands have failed to provide the protection they claim in tests by a consumer watchdog.
Piz Buin Ultra Light Dry Touch Sun Fluid SPF30 150ml, Malibu Protective Lotion SPF30 200ml and Hawaiian Tropic Satin Protection Ultra Radiance Sun Lotion SPF30 200ml all had results lower than SPF 25, despite claiming an SPF of 30, Which? said.