They can be:Alcohols:
they give the oil low toxicity and safety of use (lavender, geranium, tea tree, neroli, rosewood).
Aldehydes:
determine the scent of the plant (lemon, lemongrass, lemon balm).
Ketones:
similar to aldehydes, they give the characteristic note to the essential oil, if they are present in quantity, as in hyssop and sage, they can be dangerous and must be used with great caution (ginger, peppermint, rosemary).
Foreign: they are present in small concentrations (clary sage and lavender).
MINIMUM ORDER QUANTITY 20 Kg