α-Terpineol – PatientsCann UK

α-Terpineol

alpha-Terpineol

pronounced: ter-PIN-ee-ol

A gentle flowery, piney scent like lilac. Linked to calm and sleep, and common in soaps and lotions.

Oxygenated monoterpene Boiling point: 218°C
Terpene type
Oxygenated monoterpene
Boiling point
218°C
Primary aroma
Floral
Key effect
Calming

Aroma profile

How it Smells

The aroma of α-Terpineol is described as:

FloralLilacPineySweetHerbal
Found naturally in: Lilac, pine, cajeput oil, petitgrain, cardamom, marjoram

Effects

Linked Effects

CalmingSleep supportAnti-inflammatory

These effects are based on early-stage research in animals and cells. They are not proven in humans. Do not change your treatment based on this information.

About

What is α-Terpineol?

Alpha-terpineol is a soft, flowery terpene with a smell often compared to lilac, with a gentle piney background. It is found in lilac flowers, in pine, and in cardamom, and it is one of the smells people find most pleasant and relaxing.

It carries an oxygen atom in its structure, which gives it that rounded, almost soapy floral smell. This is why it is used so widely in cosmetics (Booth and Bohlmann, 2019).

Effects in detail

What the Research Says

Among the things studied about alpha-terpineol, its calming and sleep-supporting quality stands out. In animal studies it has shown a sedative-like effect, and it has also been looked at for easing swelling and fighting germs (Nuutinen, 2018).

These effects are seen mostly in the laboratory. They fit the relaxed feeling many people describe, but they are not yet proven in human trials.

Everyday sources

Where You Find it in Daily Life

You meet alpha-terpineol in lilac blossom, in pine, and in many flavours and fragrances. It is one of the most common terpenes in soaps, lotions and perfumes because of its pleasant floral smell.

It is also used to give a soft, sweet note to some foods and drinks.

Research

Key Studies

Nuutinen (2018) reviewed the evidence on alpha-terpineol, describing its calming effect in animal studies and its anti-inflammatory and germ-fighting activity. Its possible part in the entourage effect has also been discussed (Russo, 2011).

Its chemistry is recorded in public databases (National Center for Biotechnology Information, 2025).

Back to full Terpenes Guide
Important: The information on this page is for education only. It is not medical advice. Terpene research is still in its early stages. Many studies have been done in animals, not yet in people. Always speak to your doctor before changing your treatment. PatientsCann UK does not recommend any specific cannabis product.

References

  1. Nuutinen, T. (2018) 'Medicinal properties of terpenes found in Cannabis sativa and Humulus lupulus', European Journal of Medicinal Chemistry, 157, pp. 198-228. doi: 10.1016/j.ejmech.2018.07.076.
  2. Russo, E.B. (2011) 'Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects', British Journal of Pharmacology, 163(7), pp. 1344-1364. doi: 10.1111/j.1476-5381.2011.01238.x.
  3. Booth, J.K. and Bohlmann, J. (2019) 'Terpenes in Cannabis sativa: from plant genome to humans', Plant Science, 284, pp. 67-72. doi: 10.1016/j.plantsci.2019.03.022.
  4. National Center for Biotechnology Information (2025) PubChem Compound Database. Bethesda: U.S. National Library of Medicine. Available at: https://pubchem.ncbi.nlm.nih.gov (Accessed: 11 June 2026).
  5. Cicada Jersey (2020) Terpene Wheel. Available at: https://cicada.je/terpene-wheel/ (Accessed: 11 June 2026).