Gold Standard Diploma in Aromatherapy, Essential Oil Science

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Gold Standard Diploma in Aromatherapy, Essential Oil Science

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The Gold Standard Diploma Program in Aromatherapy, Essential Oil Science and Research combines the Professional Certified Program in Aromatherapy and Essential Oil Science and the Master’s Certification Program in Aromatherapy, Essential Oil Science and Research.  

This program includes the history of aromatherapy, anatomy and physiology, pathologies, organic chemistry, safety, Psychoneuroimmunology (PNI), sustainability and conservation, botany, extraction methods, 97 essential oil monographs, 26 carrier oils, 18 miscellaneous carriers, 18 hydrosols taught by Madeleine Kerkhof, 27 CO2 extracts taught by Ann Harman, passages - birth to passing, Applied Aromatherapy, Pharmacokinetics, Transdermal/Dermal application. Inhalation, Application, Dilution,Dosage/Duration/Pre-diluted/Calculations, Consultation Skills and Therapeutic Relationship, Role of Olfaction, Role of olfaction on human psychology, the Olfactory system, Olfactory system disorders, Ethics, Business Skills and Marketing, Business Plan, Branding, Research, Research paper, writing and publishing research plus a choice of one of five 50–60 hour electives 1. Animal Aromatherapy 2. Herbalism, 3. Aromatherapy in Palliative Care, 4. Natural Skin Care Formulation, 5, Teacher Training. 

Graduates from this program can join these international associations at their highest levels:


AIA – Advanced Practice Clinical Aromatherapist (level 3)

NAHA – Certified Clinical Aromatherapist (level 3)

IFPA – Full Member

CAOA- Registered Aromatherapist - RA ® and Essential Oil Therapist - EOT® (level 3)

Canadian Federation of Aromatherapists – Certified Aromatherapy Health Professional, CAHP® (Level 3)

New Zealand Registry of Holistic Aromatherapy (NZROHA) – Professional Member

Enhanced learning and support includes a subscription to either Blend Precisely or 
Dropmart, monthly lectures with experts in the aromatherapy field, monthly open forums, personal case study mentor, personal research paper mentor, community forum and an extensive resource library.

Colleen is an advocate for evidence-based education, inclusivity, and collaboration within the aromatherapy community. Teaching is her passion, and she finds fulfillment in sharing her knowledge and helping others to discover their own potential in the field of aromatherapy.

Colleen is a proud ICAN Fellow, Co-chair of the AIA Education Committee and Past President of the CAOA.

Please email support@essenceofthyme.com for more information