Purodem® Diploma Programme

Professional Essential Oils Therapy (PEOT) Clinical Aromatherapy Course

A structured professional Diploma providing a strong foundation in clinical aromatherapy and essential oil therapy for safe, confident, and professional practice.

A Professional Clinical Aromatherapy Diploma

The Professional Essential Oil Therapy (PEOT) Diploma is an advanced clinical aromatherapy course designed for those who want structured, professional-level training in essential oil therapy and therapeutic formulation.

Across six in-depth modules, you will study 90 essential oils and 34 carrier oils, develop clinical consultation skills, and learn to design bespoke aromatherapeutic remedies tailored to real client needs.

This course combines scientific understanding, safe application, and practical formulation — preparing you for confident, professional practice. 

Enrolment is open year-round with flexible start dates. Applications are reviewed individually to maintain high levels of tutor support.

Apply for the PEOT Diploma

No formal prerequisites. Flexible start dates. Structured tutor support throughout.

PEOT Aromatherapy Course – Diploma Overview

This professional aromatherapy course is designed for practitioners who want structured, in-depth training in clinical essential oil therapy and therapeutic formulation.

The Professional Essential Oil Therapy (PEOT) Diploma combines scientific understanding, safe clinical application, and practical formulation skills — preparing you to work confidently with clients in wellness, integrative, and private practice settings.

Programme Highlights

Professional Diploma in Clinical Aromatherapy

Structured, levelled training aligned with real-world therapeutic practice.

Study of 90 Essential Oils & 34 Carrier Oils

Including chemistry, safety data, pharmacological actions, and clinical application.

Advanced Aromatherapeutic Formulation Skills

Structured, levelled training aligned with real-world therapeutic practice.

Clinical Consultation & Treatment Planning

Develop structured client assessment methods and ethical professional frameworks.

Therapy Business & Practice Development Training

Learn how to build and manage a sustainable aromatherapy or integrative wellness practice.

Flexible Online Study with Personal Tutor Support

Structured learning delivered through guided modules, live sessions, and ongoing feedback.

Clinical Aromatherapy & Aromatherapeutic Formulation Training

This professional-level course integrates essential oil chemistry, therapeutic application, personalised formulation, and product development. Whether you’re looking to practise clinically or offer bespoke remedies in a complementary therapy setting, the Professional Essential Oil Therapy (PEOT) Diploma equips you with a deep, evidence-informed skillset in both essential oil therapy and natural formulation.

Aromatherapy and Bespoke Product Formulation

Learn how to design and formulate a range of natural aromatherapeutic remedies, including emulsions, balms, and cleansers. This clinical aromatherapy course provides practical, structured training in ingredient functionality and formulation design, enabling you to adapt remedies for individual client needs.

Ideal for practitioners who wish to offer targeted, personalised support, the Professional Essential Oil Therapy (PEOT) Diploma integrates therapeutic essential oil practice with professional formulation skills.

Flexible Online Learning With Personalised Tutor Support

The PEOT Diploma is delivered through guided online learning, making this clinical aromatherapy course accessible to students worldwide. Study at your own pace using our mobile-friendly platform, with high-quality video tutorials, written materials, and practical demonstrations.

To support your development, you’ll receive:

  • Regular one-to-one Zoom tutor sessions
  • Live group tutorials and discussions
  • Access to the Purodem Academy community

Who This Aromatherapy Course Is For

This professional aromatherapy course is designed for practitioners who want to integrate clinical essential oil therapy into their existing work or build a dedicated aromatherapy practice.

For Healthcare Providers

Nurses, physiotherapists, and occupational therapists can integrate clinical aromatherapy into their practice to support emotional and physical wellbeing across a range of patient needs.

For Holistic & Complementary Therapists

Reflexologists, massage therapists, Reiki practitioners, and herbalists will gain confidence in using essential oils safely and effectively to personalise treatments and enhance outcomes.

For Wellness Practitioners

Yoga teachers, mindfulness coaches, and meditation facilitators can deepen their sessions by integrating essential oils to promote balance, relaxation, and emotional resilience.

For Skincare Entrepreneurs

If you’re formulating skincare or wellness products, the course offers practical training in aromatherapeutic formulation, ingredient safety, and therapeutic product design.

For Spa & Beauty Professionals

Aestheticians, beauty and spa therapists can customise client treatments using essential oils, improving client experience and setting their services apart in a competitive market.

“As a nurse, I’m naturally cautious about complementary therapies. I attended a Purodem workshop to better understand essential oil safety and professional boundaries. I appreciated the balanced approach — it wasn’t exaggerated or overstated. The focus on dosage, contraindications, and documentation made it feel aligned with healthcare standards. It’s changed how I view aromatherapy in a clinical context.”
Workshops October 2023
Sophie Reynolds, Registered Nurse
Purodem® CPD Series Attendee

Professional Practice & Business Skills

Beyond technical training, this aromatherapy course prepares you for the real-world demands of working in clinical aromatherapy, wellness practice, or natural product development.

Clinical Practice Foundations

  • Conduct safe, effective client consultations and treatment planning
  • Understand the legal, ethical, and safety frameworks in holistic healthcare
  • Apply professional standards in both clinical and wellness environments

Launch or Grow Your Business

  • Learn how to set up a private aromatherapy practice or skincare brand
  • Build client relationships and deliver personalised care
  • Gain marketing insights to grow a sustainable, values-led business

Your Pathway to a Professional Aromatherapy Career

Whether you’re aiming to work in clinics, wellness centres, spas, or run your own private practice, the PEOT Diploma provides the structured training required to build a confident and sustainable career in clinical aromatherapy.

Graduates receive a recognised professional qualification and are prepared to seek practitioner insurance and operate within professional standards.

Course Tutor & Programme Lead

The Professional Essential Oil Therapy (PEOT) Diploma is led by Deana Kassim, founder of Purodem and an experienced educator in clinical aromatherapy and therapeutic formulation.

With over two decades of experience in product formulation, aromatherapy, and structured professional education, Deana has delivered professional training programmes to students seeking a rigorous, practice-focused foundation in essential oil therapy.

Students are guided through each stage of the course with clear instruction, practical demonstrations, and personalised feedback — ensuring that therapeutic creativity is supported by safety, science, and professional standards.

PEOT Diploma Structure: 6 Guided Modules

The Professional Essential Oil Therapy (PEOT) Diploma follows a comprehensive six-module structure designed to support both clinical application and advanced aromatherapeutic formulation.

PEOT: Module 1 - Anatomy & Physiology

This module provides a solid foundation in human anatomy and physiology, essential for practising safely and effectively in clinical aromatherapy. You’ll learn how the body is structured, how its systems function, and how to recognise signs of imbalance or disease. This knowledge ensures you can work confidently and professionally within your scope of practice.

View Module Topics
  • Understand key anatomical terminology
  • Learn how the human body is structured and organised
  • Identify major body systems, organs, and their functions
  • Explore the concept of homeostasis and its role in health
  • Recognise signs and symptoms of common disorders
  • Understand cell structure, function, and reproduction
  • Gain foundational knowledge of diseases and how they affect the body
  • Build the confidence to work safely and professionally with clients

PEOT: Module 2 - Essential Oils & Pathology

This module explores pathology in the context of clinical aromatherapy, building on the anatomical knowledge from Module 1. You’ll study a range of diseases and disorders, conventional treatments, and how essential oils can be integrated for symptom support—within safe and ethical boundaries.

  • Understand key terminology used in pathology
  • Define health, wellness, and illness from a holistic perspective
  • Recognise signs, symptoms, causes, and effects of common diseases
  • Explore conventional treatments for major disorders
  • Learn ethical and legal considerations for working with illness
  • Discover holistic support options for client care
  • Identify essential oils suitable for specific symptoms and conditions
  • Integrate essential oil therapy safely alongside conventional care

PEOT: Module 3 - Essential Oil Therapy

This module delivers in-depth knowledge of 90 essential oils and 34 carrier oils, combining scientific and traditional perspectives. You’ll explore therapeutic actions, blending techniques, safety data, and how to design personalised treatments for physical, emotional, and psychosomatic needs.

  • Study the therapeutic uses of 90 essential oils and 34 carrier oils
  • Learn the chemistry, pharmacology, and botanical context of each oil
  • Understand blending, dosage, and application methods for clinical use
  • Explore aromatherapeutic skincare and dermacare protocols
  • Examine safety, toxicity, and legal considerations for practice
  • Discover emotional and psychosomatic benefits of essential oils
  • Identify oils not suitable for aromatherapy and understand why
  • Develop professional treatment plans and therapeutic environments

PEOT: Module 4 - Professional Practice

This module focuses on building strong therapeutic relationships, maintaining ethical standards, and supporting your own wellbeing as a practitioner. It includes training in client communication, consultation techniques, and an introduction to integrating aromatherapy with other complementary therapies.

  • Understand ethical and professional boundaries in client work
  • Build effective client relationships with empathy and respect
  • Learn consultation techniques and treatment planning
  • Explore the importance of reflective practice and self-care
  • Follow best practices for hygiene, health, and safety
  • Gain awareness of other complementary therapies and how they integrate with aromatherapy

PEOT: Module 5 - Business Studies

Whether you’re starting your own practice or launching a skincare brand, this module equips you with the business knowledge to succeed. Learn how to structure your business, navigate legal requirements, plan financially, and market your services effectively.

  • Learn how to start and manage a complementary therapy business
  • Understand financial planning, budgeting, and projections
  • Explore different business models and employment options
  • Analyse legal responsibilities and business regulations
  • Identify essential resources for launching your practice
  • Develop effective marketing strategies for your services

PEOT: Module 6 - Advanced Aromatherapeutic Formulation

In this module, you’ll develop advanced formulation skills using essential oils and natural ingredients. Learn to design and produce professional-grade products for topical application, tailored to a wide range of skin and wellness concerns.

  • Formulate creams, gels, balms, cleansers, and more
  • Understand the use of essential oils in skincare and dermal therapy
  • Explore emulsions, anhydrous products, gels, and surfactants
  • Set up a compliant workspace with GMP and proper documentation
  • Work with advanced actives, clays, extracts, vitamins, and pH adjustment
  • Create personalised formulations for client-based skincare solutions
  • Learn preservation strategies, product safety, and formulation standards
  • Develop products suitable for both personal use and professional application

Coursework, Exams & Final Assessment

Students complete structured coursework, written examinations, portfolio development, and practical assessments throughout the programme. These evaluations are designed to ensure graduates are professionally prepared for clinical aromatherapy practice.

Assessments include:

  • Written coursework at the end of each module
  • Internal mock examinations
  • Final written exams
  • Practical assessment including:
    • Presentation of five remedies
    • Portfolio review
    • Professional discussion

Learning Outcomes

By the end of this clinical aromatherapy course, you will have developed the knowledge, practical skills, and professional judgement required to work confidently and responsibly with essential oils in a therapeutic setting.

You will be able to:

  • Demonstrate in-depth knowledge of 90 essential oils and 34 carrier oils, including their chemistry, safety profiles, and therapeutic applications
  • Conduct structured client consultations and develop appropriate treatment plans
  • Select, blend, and dose essential oils safely for topical and olfactory use
  • Formulate bespoke aromatherapeutic products including creams, gels, balms, and cleansers
  • Apply relevant legal, ethical, and professional standards in clinical aromatherapy practice
  • Identify contraindications, precautions, and safe working limits
  • Integrate essential oil therapy alongside complementary and wellness practices
  • Maintain accurate client records and professional documentation
  • Develop and manage a sustainable aromatherapy or integrative wellness practice

Course Fees & Enrolment Options

PEOT Diploma Course Investment (One-Time Payment) – £2995

This includes:

  • All six structured modules of professional training
  • Study of 90 essential oils and 34 carrier oils
  • Clinical consultation and treatment planning training
  • Advanced aromatherapeutic formulation modules
  • Structured coursework and assessments
  • Full tutor guidance and personalised feedback
  • Access to live Zoom sessions and student community
  • Two years of guided access to the programme
  • Award of the Professional Essential Oil Therapy (PEOT) Diploma

 

Applications are accepted year-round, with places allocated according to tutor availability.

Payment Plan Option

  • Initial Payment: £795.00
  • Five Monthly Instalments: £500.00 (charged on the 1st of each month)
  • Total: £3295.00 (to cover additional admin costs) Terms & Conditions apply.
Apply for the PEOT Diploma

Applications are reviewed individually.

Flexible start dates and structured tutor support included.

Frequently Asked Questions

The PEOT Diploma is a professional clinical aromatherapy course designed to train students in the advanced therapeutic use of essential oils and bespoke aromatherapeutic formulation. It combines scientific understanding with structured clinical practice to prepare graduates for safe, confident, and professional work.

The PEOT Diploma is a structured professional qualification designed to meet industry standards and support eligibility for practitioner insurance. It provides comprehensive training in clinical aromatherapy and essential oil therapy aligned with professional practice.

This clinical aromatherapy course is delivered entirely online through guided, tutor-supported learning. Students access video tutorials, written materials, live Zoom sessions, and the Purodem Academy platform. Study is flexible and self-paced, with up to two years to complete.

No formal qualifications are required. Applicants are asked about their background and interests to ensure the course is a good fit. A background in healthcare or complementary therapy can be helpful, but it is not essential.

You will study 90 essential oils and 34 carrier oils in depth, including their chemistry, safety data, therapeutic actions, and practical application. You will also develop skills in clinical consultation, treatment planning, and aromatherapeutic formulation — including creams, balms, gels, and cleansers tailored to client needs.

Students complete structured coursework, written examinations, portfolio development, and practical assessments throughout the programme. These evaluations ensure graduates are professionally prepared for clinical aromatherapy practice.

Upon successful completion, you will receive the Professional Essential Oil Therapy (PEOT) Diploma awarded by Purodem.

Graduates are prepared to apply for professional practitioner insurance, subject to individual insurer requirements and regional regulations.

This depends on your professional role, region, and how aromatherapy is integrated within healthcare environments. Many graduates work in private practice, wellness settings, or alongside healthcare professionals.

You will need access to essential oils and carrier oils to complete your coursework and formulation assignments. These can be purchased gradually throughout the course to manage cost and maintain freshness.

Yes. This aromatherapy course is delivered fully online and is accessible to students worldwide.

Applications for the PEOT Diploma are open year-round. Once accepted, you may begin at the next available start point, with flexible access to all course materials.

“I run small group yoga and relaxation sessions, and I wanted a deeper understanding of how to use essential oils responsibly. The CPD workshops with Purodem felt practical and down to earth. I appreciated that nothing was oversimplified — safety, dosage, and real formulation were properly explained. I’ve come away feeling much more confident about integrating aromatherapy into my sessions.”
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Laura Stevens, Yoga & Wellness Practitioner, Brighton
Purodem® CPD Series Attendee

Ready to Begin Your Clinical Aromatherapy Training?

If you’re serious about developing advanced skills in essential oil therapy and professional aromatherapeutic formulation, the PEOT Diploma provides the structured pathway to confident, professional practice.

Enrolment is open with flexible start dates and guided tutor support throughout your journey.

Apply for the PEOT Diploma

We review each application individually to ensure the programme is the right fit for your professional goals and level of commitment.

Successful applicants receive full enrolment details, payment options, and guidance on starting their studies.

Applications are reviewed within 24–48 hours. There is no obligation until you confirm enrolment.

Considering the PEOT Diploma?

If you’re interested in developing your clinical aromatherapy skills but would like further clarification before applying, you’re welcome to request additional information.

Submit your details below and we’ll provide guidance to help you decide whether the programme is right for you.