The oil can irritate the skin and eyes. Salvia 70 species are found in tropical and temperate regions. Salvia officinalis Sage Cheilitis and stomatitis from sage tea were reported by Zakon et al. Salvia sclarea Clary sage oil from this species was irritant to abraded rabbit skin when applied under occlusion. Thymus 300 to 400 species are native to temperate Eurasia.
Several species provide oils.
Elizabeth, J.N. Published by the author. Skin-Irritant and Sensitizing Plants found in India, New Delhi. P.N. Behl, Irwin Hospital. The Merck Index. An Encyclopedia of Chemicals, Drugs, and Biologicals.