The peppermint plant's leaves are used to make the essential oil peppermint oil (mentha piperita). After picking fresh peppermint leaves, the oil and hydrosol are extracted using the steam-distillation method.

Peppermint oil is prized for its wealth of therapeutic properties and medicinal benefits all over the world, from the natural and organic beauty industry to the pharmaceutical industry, from aromatherapy to wellness, from homoeopathy to naturopathy, from Ayurveda to farming, and from food to flavouring.

An essential oil called clove oil is made from clove trees. Originally from Southeast Asia, the clove tree, or Syzygium aromaticum, is now also seen growing in other places. The dried flower buds of the clove tree are harvested and used to distil clove oil. It is also possible to use the stem and leaves of the tree. The pungent, spicy aroma of clove oil, which ranges in hue from colorless to light yellow, has been used for millennia in a number of uses.

Eucalyptus trees, which are currently cultivated all over the world and are renowned for their therapeutic qualities, are originally native to Australia. Eucalyptus oil, produced from the oval-shaped leaves of the tree, is the source of its therapeutic benefits.

One of the most well-liked and adaptable essential oils used in aromatherapy is lavender. The oil is claimed to alleviate anxiety, allergies, depression, insomnia, eczema, nausea, and menstrual cramps. It is extracted from the plant Lavandula angustifolia.