All essential oils should be mixed with a carrier oil and patch-tested before using on a large area of the body, face, or scalp. Ylang ylang is also poisonous to dogs and cats.

Striking essential oil: tapping into a largely unexplored source for drug discovery, Feyaerts, Luyten, Van Dijck, Scientific Reports 2020 Doi: 10.1038/s41598-020-59332-5 ...