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Essential Oil Resource Consultants

EORC have been providers of education, information and research in the field of essential oils and clinical aromatherapy since 1990.
This longstanding involvement in the fields of aromatic medicine, aromatherapy and essential oils is reflected in our various activities and achievements.

The company’s key roles and aims are to promote the professional, ethical and safe use of essential oils and related products and to maximise their full potential as therapeutic agents. It does so through education and publishing (via the International Journal of Clinical Aromatherapy) and hosting of international conferences. 

  Most of our work is conducted in the English language; French is a second language 

Who are EORC ?

Rhiannon Lewis (formerly Rhiannon Harris) is the director of Essential Oil Resource Consultants.
She is an experienced aromatherapist, author and gifted educator.

Her extensive experience in the clinical uses of essential oils stems from undertaking training in countries such as the UK, France and the USA.
Rhiannon is                    

  • motivated by the potential of essential oils to significantly improve health and quality of life.
  • driven by the desire to make evidence-based information available to therapists wishing to effectively integrate essential oil use alongside regular medical care.
  • passionate about promoting the field of clinical aromatherapy.

Together with Gabriel Mojay, Rhiannon is editor of the International Journal of Clinical Aromatherapy. Through publication of evidence-based articles and research studies, she inspires practitioners to use essential oils and related products across a range of healthcare settings.

Rhiannon is a Fellow of the International Federation of Professional Aromatherapists (GB). In 2009 she was honoured to receive an achievement award by the Alliance of International Aromatherapists (USA).


Our activities

Conducting seminars and courses worldwide concerning aromatic medicine, aromatherapy and essential oil-related studies

Offering custom made programs and aromatherapy tours in Provence

  Editing and publishing the International Journal of Clinical Aromatherapy ; the only journal of its kind that focuses on the applications and potentials of using essential oils in clinical settings

Working with essential oil suppliers, laboratories and companies with regards product formulation, research and staff training
 Hosting and organising international conferences botanica2012, botanica2014 

 Consulting for events such as Phyt'Arom Grasse and La Fete du Narcisse - a local nature festival

Collaborating with other experts in the field of essential oils to ensure the provision of the highest quality information available.