Testen genomfördes på så sätt att testkandidaterna smorde in halva kroppen med Safe Sea och andra halvan med ett placebomedel. Varken deltagare eller forskare visste visste vilken flaska som innehöll vilket. Det var med andra ord en dubbelblindstudie
Efter 82 badtillfällen så hade 11 blivit brända på den kroppshalvan utan Safe Sea men endast två på den kroppshalvan med Safe Sea. Totalt sett blir det en minskning av brännskador med 82% om man använder Safe Sea.
A double-blind, randomized, placebo-controlled trial occurred at the Dry Tortugas National Park, FL, USA and Sapodilla Cayes, Belize. Participants were healthy volunteers planning to snorkel for 30 to 45 minutes. Ten minutes prior to swimming, each participant was directly observed applying a blinded sample of Safe Sea (Nidaria Technology Ltd, Jordan Valley, Israel) to one side of their body and a blinded sample of Coppertone® (Schering-Plough, Kenilworth, NJ, USA) to the contralateral side as placebo control. Masked 26 g samples of both Safe Sea SPF15 and Coppertone® SPF15 were provided in identical containers to achieve 2 mg/cm2 coverage. Sides were randomly chosen by participants. The incidence of jellyfish stings was the main outcome measure. This was assessed by participant interview and examination as subjects exited the water.
A total of 82 observed water exposures occurred. Thirteen jellyfish stings occurred during the study period for a 16% incidence. Eleven jellyfish stings occurred with placebo, two with the sting inhibitor, resulting in a relative risk reduction of 82% (95% confidence interval: 21%–96%; p = 0.02). No seabather’s eruption or side effects occurred.
Safe Sea is a topical barrier cream effective at preventing >80% jellyfish stings under real-world conditions.