phototoxic
/ˌfoʊtoʊˈtɑksɪk/
adjective
- Causing a harmful or poisonous reaction when the skin is exposed to light, especially sunlight.
- Some essential oils, like bergamot, can be phototoxic if applied before going outside.
- The plant's sap is phototoxic, causing blisters when touched in sunlight.
- Certain medications make your skin phototoxic, leading to severe sunburns.