Covering essential oil safety, distillation, classification, a book list, and a forum.

An aromatherapy dictionary, essential oil blends, tips for beginners, and an "ask the aromatherapist" section.

Information about using aromatherapy with those who have terminal illness, special needs, learning disabilities, and challenging behavior.

Medical Herbalist Martin Watt provides an aromatic extract safety manual and articles about conservation, education, toxicity, therapeutics, and production.

Australian site offering information on the sense of smell, how aromatherapy works, essential and carrier oils, some blending recipes, and safety information.

Information for those just starting to explore aromatherapy for personal use, including essential oil profiles, recipes, and tips.

Volunteer-contributed articles on topics such as history, case studies, distillation, massage, essential oil quality, and safety.

Recipes and blends for baths, face care, foot care, and massage.

Includes information about the group’s members, research projects, and published studies.

Includes articles about essential and carrier oils, diffusers, and oil burners.

Provides articles, recipes, synergies, essential oil profiles, book reviews, and aromatherapist and business listings.

Offers blending formulas for health and beauty, smudge blends, recipes, and remedies for healing.

Includes blends for perfumes, body scrubs, and diffusing, as well as profiles for some commonly used essential oils.

Statement from the FDA regarding government regulation of essential oils and aromatherapy products and claims made about such products.

Descriptions of essential oils and carrier oils, a reading list, symptom guide, precautions, and glossary.

Informational discussion of incense, its history, uses, and traditions.

Information on clinical studies, history, how it works, safety issues, and an essential oil directory.

Multilingual site with information about distillation, history, oil properties, and chemistry.

Provides contributed articles about topics such as hydrosols, essential oil quality, energetics, and healing.

A resource aimed at beginners, with history, recipes, oil properties, and precautions.

Information provided by the University of Minnesota’s Center for Spirituality and Healing. Includes articles about how essential oils work, research, safety, and finding an aromatherapist.

Information for aromatherapists and students, including essential oil profiles, recipes, and articles. Oils, beauty, and well-being areas are searchable by sub-topic.

Provides information about production of essential oils, articles addressing misconceptions about aromatherapy, book reviews, courses, workshops, projects, and consultant services.

Provides articles, health and research databases, product reviews, essential oil profiles, and links.

Information on essential oils, their properties, uses in the treatment of illness, and common recipes for use in the bath, or with massage.

Dr. Khan discusses the uses of essential oils and herbs for conditions such as fibromyalgia, Lyme disease, autoimmune diseases, and stress.