Bisabolol

Alpha-bisabolol is a sesquiterpene alcohol and the primary constituent of German chamomile oil, where it is responsible for much of the flower's gentle, sweet scent; Wikipedia notes that its smell has also been compared to apples and honey. It was first obtained from chamomile, and the candeia tree of Brazil is another commercial source. Wikipedia reports that high concentrations occur in certain medicinal cannabis cultivars, although it does not appear among the main terpenes for any strain in this guide.

Bisabolol's best-established use is in cosmetics. A 2022 review in Nutrients describes it as a skin-conditioning ingredient valued for skin-soothing properties, good skin absorption and an absence of irritation or photosensitivity, and notes that the US FDA considers it safe because of its low toxicity. The same review summarizes anticancer, antinociceptive, neuroprotective, cardioprotective and antimicrobial activity, but based mostly on cell lines and animal models.

Boiling point: PubChem gives only a reduced-pressure figure of about 151–152 °C at 12 mmHg. We found no sourced value at normal atmospheric pressure, so that figure should not be read as an ordinary boiling point.