Efficacy of a Novel SPF Booster Based on Research Aboard the International Space Station

Abstract

The use of sunscreen is the most effective way to minimize sun damage to the skin. Excessive UV exposure is linked to an increased risk of melanoma and accelerated skin aging. Currently, approved UV filters fall into two categories: chemical- or mineral-based filters. Besides approved filters, there are numerous SPF-boosting additives that can be added to sunscreen products to enhance their efficacy. This manuscript shows the potential application of the novel SPF booster, Bacillus Lysate, developed from Bacillus pumilus PTA-126909, which was derived from research aboard the International Space Station. The addition of the 3.5%, 7%, or 10% Bacillus Lysate resulted in a 33%, 29%, and 22% boost in the SPF values of an SPF 30 sunscreen, respectively. The potential use of extremophiles and their byproducts, like the Bacillus Lysate presented here, may be a promising alternative SPF booster for the sunscreen industry.