Glossary of Terms


Generally an alcohol method of extraction from concrete for producing an alcohol-soluble liquid or semi-liquid oil.


Skin disorder caused by inflammation of the skin glands and hair follicles found primarily in adolescents and marked by pimples, especially on the face.


Agent or remedy that deadens pain.


Agent that combats arthritis.


Alleviates inflammation.


Agent that destroys or resists pathogenic micro-organisms.


Substance used to prevent or delay deterioration, especially upon exposure to air. Prevents fats from spoiling.


Prevents and destroys microbe development.


Stimulates or increases sexual desire.


Therapeutic use of essential oils to balance, rejuvenate and relax the body, mind and spirit. Aromatherapy helps improve the quality of life on an emotional, physical and spiritual level.


Inflammation of joints due to infectious or metabolic causes.


Condition marked by labored breathing and wheezing, sense of chest constriction, and often attacks or coughing or gasping. Often from an allergic origin.


Causes contraction of organic tissues.


Extracted substance derived from flower distillation.

Cold pressed

The cold pressed or expression method used to obtain certain essential oils, especially citrus, carrier oils and juices. Minimal heat extraction process. Also see expeller pressed.


Waxy, solid or semi-solid perfume material prepared from previously live plant matter, usually using a hydrocarbon type of solvent, which yields, after solvent removal, a waxy, solid or semi-solid concentrate.


Evaporation, or volatilization, of the aromatic components of the oil into the atmosphere. Accessories such as aroma lamps, electric diffuser and unglazed porous diffusers can be used.


Heat process for separation and purification of a liquid mixture from plant material where the essential oils are derived through vaporization and condensation.


Inflamed skin condition characterized by itching, redness and oozing vesicular lesions that become crusted or scaly.


Has a soothing and softening effect on the skin by preventing water loss.


Substances used to bind or stabilize an emulsion. An example of an emulsion would be an oil and vinegar salad dressing once shaken.

Essential Oil

The volatile and aromatic liquid or semi-solid obtained from a single botanical, primarily through the distillation, expression or extraction process. Generally, it constitutes the odorous principles of a plant, having the taste or smell of the original botanical used. However, essential oils do not always have the same properties as the whole plant from which it was derivied from as certain parts of the plant are used to produce the essential oil.

Expeller pressed

Extraction by machine pressing, usually around 90 degrees Fahrenheit.

Extraction Absolutes, concretes, oleoresins and resinoids are produced through this process of treating plant material with an organic solvent. The solvent portion is removed upon filtering. The extract contains both volatile and non-volatile components.

Material that slows down the evaporation rate of more volatile components in a perfume composition.

Fixed or Carrier Oils

Non-volatile oils derived from plant material, usually referred to as vegetable oils. Certain oils are used as a base to dilute the essential oils.


Prevents and combats fungal infection.


Process of decomposition involving splitting of a bond and addition of the elements of water.


Also known as floral water or distillate water.  It is the by-product of steam distillation and includes some of the water-soluable elements of the plant not included in essential oil. In addition, hydrosol ha

s many of the same properties as the essential oil in lower concentrations.


Repels insects.


On a scale of 14, it measures alkalinity and acidity. A neutral solution, such as water, is 7. Alkaline is more than 7, while acid is less than 7. Skin and hair are naturally acidic.


Chronic skin disease known by its silver scaling and red patches.


Soothing, causing relaxation, relieving strain or tension.


Strengthens and revives the body system.


Various conditions characterized by inflammation or pain in joints, muscles or fibrous tissue.


Generally associated with excessive oil secretion from the sweat glands.


The level of sebum production determines whether skin is dry, normal or oily. It is the oily substance produced by the sebaceous glands which are open to the skins surface at pores located in the epidermis. Its function is to lubricate the skin and seal in moisture. Too much sebum production can cause acne and other skin disorders.

Single Note

100% pure and natural essential oil that has no additional additives and has not been adulterated.


Product added to maintain a desired texture or give it body.


Agent that quickens the physiological functions of the body.


These wetting agents help lower water's surface tension which allows it to penetrate and spread out more easily. There are four major categories, depending upon the electrical charge, or lack of electrical charge, carried. Surfacants properties range from cleaning, stain removal, antistatic and sanitizing, to adding mildness to shampoos and lotions.


Agents that work harmoniously together, or where the total effect is more affective than the individual parts. A synergistic oil blend combines a variety of oils to produce a new aroma with a different therapeutic effect.


Method of alcoholic extraction from mashed or boiled plant material for flavors, aromas and tonics. Also an herbal remedy, or perfumery material prepared in an alcohol base.


Enlivens and strengthens body parts.


Capability possessed by a solid of yielding continually under stress.


Unstable and evaporates easily.


Organic compound generally similar in composition to fats and oils, except it contains no glycerides. Solid at room temperature.


Some products or ingredients, even natural ones, can cause an allergic reaction in some individuals. Always try a test patch or discontinue use of any product or ingredient suspected to cause a problem. You should consult your physician or appropriate medical reference for any advice regarding specific health concerns or treatments. The information provided is for informational purposes, does not include all available sources, and is not intended to be a prescriptive or medical guide. Keep all products and ingredients out of eyes and away from children's reach.

Resources: "A Consumer's Dictionary of Cosmetic Ingredients" by Ruth Winter, M.S.; "The Art of Aromatherapy" by Robert B. Tisserand; The Soapmaker's Companion" by Susan Miller Cavitch; "The Illustrated Encyclopedia of Essential Oils" by Julia Lawless; "Complete Aromatherapy Handbook" by Susanne Fischer-Rizzi.

Notice: This list is intended for informational purposes only and is not a medical or prescriptive guide. It is not intended to treat or diagnose any problems, and you should seek medical attention or advice for your specific situation.