The University of Arizona has licensed a new, non-penetrating sunscreen to MexiAloe Laboratorios, S.A. de C.V., a subsidiary of Novamex.

The novel formulation binds oxybenzone — the active ingredient in most over-the-counter sunscreens — in such a way that it does not seep into the skin. Douglas Loy, a professor who holds appointments in Chemistry and Biochemistry in the Colleges of Science and Medicine – Tucson,  as well as a faculty position in the Department of Materials Science and Engineering in the College of Engineering, worked with graduate student Stephanie Tolbert to develop the formulation.