Background: Rosemary plant. with phenolic compounds. is known as an antioxidant herb and able to scavenge free radical agents in the biological environment; therefore. it is expected that the rosemary essential oil (R-EO) shows the radioprotective effect to protect individuals who are physically in contact with ionizing radiation. https://www.jmannino.com/special-deal-A-Magazine-Curated-By-Sacai-quick-pick/