Courses and Workshops

  • $35

Aromatherapy for Anxiety & Emotional Balance

A two-part course exploring how aromatherapy can support emotional regulation during both heightened and heavy states. Learn how scent influences the nervous system, which essential oils calm stress and anxiety, and which gently uplift grief and low mood. Includes science-informed education, practical blending strategies, and safe, everyday applications for emotional balance.

  • Free

Introduction to Essential Oils

  • Mar 6, 2026 at 11:00 AM PST

In this class, I’ll guide you step-by-step through how to use essential oils safely and confidently to support your physical, mental, and emotional wellbeing. If you’ve been curious about aromatherapy but aren’t sure where to begin, or if you already have oils at home and want to understand them on a deeper level, this class will give you the clarity and foundation you’ve been looking for.

  • $15

Exploring the Evidence: A Comprehensive Class in Essential Oil Research

  • Jun 5, 2024 at 11:00 AM PDT

An in-depth class exploring evidence-based research on essential oils. Learn to navigate research databases, understand different study types, and critically evaluate the latest findings to make informed decisions. In addition, you will become acquainted with some of the most significant essential oil studies to date.

  • Free

Aromatherapy Gift Making Workshop

  • Dec 14, 2025 at 10:00 AM PST

Join us for a joyful, hands-on aromatherapy workshop where we’ll create 30 beautiful, handmade gifts in just one hour! You’ll make lotion bars, lip balms, body scrubs, hair masks, and milk baths. Each is crafted with natural ingredients and is perfect for holiday giving or stocking up on self-care treats. This fast-paced and fun session will guide you through step-by-step tips to create gifts loved ones will adore!

  • $12

DIGITAL COPY: Best Recipes for the Mind, Body and Home

Looking to make an essential oil recipe but feeling overwhelmed with the options? Look no further! These are my top 150 tried and true essential oil DIY recipes for the mind, body and home. Think of this as your little black book of recipes! It will help equip and empower you to feel confident making essential oil products. Let this inspire you to use your oils with purpose every single day!

  • $12

DIGITAL COPY: Best Blends: The Ultimate GuIde for Essential Oil Blends

Think of this as your little black book of blends! It will help equip and empower you to feel confident using essential oils. We all have days where we reach for our oils but are not quite sure what oils to use or blend together. With over 350 blends on a variety of different themes for the entire year, you will never be guessing again. Let this inspire you to use your oils with purpose every single day!

About Your Instructor

Holly Brandenberger

If you're ready to feel empowered and confident around essential oils & holistic health then you're in the right place!

I'm Holly, Registered Nurse and Certified Aromatherapist living near Seattle, Washington on my family farm. I received my Bachelor’s of Science in Nursing in 2006 from Marquette University and have worked in a variety of nursing specialties including trauma, burns, post-surgical, endoscopy and hospital administration. I discovered aromatherapy in 2015 and loved how aromatherapy can strengthen the mind-body connection and initiate a relaxation response.  I became certified through the School for Aromatic Studies and have been expanding my education ever since through specialized courses in utilizing aromatics for stress, trauma, and emotional wellbeing.

I am the founder of Science of Essentials, an online educational platform providing aromatherapy and holistic health education worldwide. I am the author of the bestselling book Aroma Alchemy, available worldwide, where I teach others how to use aromatherapy with confidence and intention. I also teach aromatherapy certification courses through The School for Aromatic Studies and currently collaborate with hospital systems to bring aromatherapy to the bedside in support of patient care. My deepest desire is to share the knowledge I’ve gained by bridging modern medicine and holistic health to serve and support others.