An article published in the journal Cosmetics reports an investigation of the effects of including rosmarinic acid, an active antioxidant, in a sunscreen along with two conventional ultraviolet light filters, ethylhexyl methoxycinnamate (against UVB) and avobenzone (against UVA).
Click here for original story, Natural molecule enhances sunscreen efficacy without increasing concentration of conventional UV filters
Source: Phys.org