Oleic acid can be considered as a non-irritant to animals (hairless mice) and humans (soap chamber test) up to 50% concentration; non-sensitizer to humans (maximization test and RIPTs); non-irritant to eyes of animals up to 6% (Draize’s test in rhesus monkeys and albino rabbits) and up to 3% to humans (occular irritation study) and non-phototoxic/non-photosensitizer to humans up to 13%.