Clear Zinc Sunscreen SPF 40 - SPF Testing Results

Our original SPF testing was conducted by Dermatest (now Eurofins), an Australian-based laboratory. We also carried out a voluntary follow-up test on an 18-month-old batch, along with preliminary waterproof testing. While the results confirmed the formula is waterproof for up to 40 minutes, we always recommend reapplying sunscreen after swimming, as water and towel-drying can reduce protection.

In light of the recent SPF discussions, we commissioned an additional independent test through Helioscience in France, a credible third-party laboratory. Although this wasn’t required, we chose to do so because we’re committed to transparency and providing the highest quality products. The latest test returned an impressive SPF 67 result, a reflection of how our formula and Zinc sourcing have continued to improve over time.

 

October 2025

 

July 2014