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Courses and Workshops

Aromatherapy Certification Course Fall 2026

  • Course

Enrollment is now OPEN!

Qualify to become a NAHA Certified Level 1 Aromatherapist with this comprehensive course. Expand your knowledge and gain a thorough understanding of the science of essential oils and how to use them personally and professionally.

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  • Ended May 7 at 7:30 PM UTC

Aromatherapy for Sleep Support

  • Zoom
  • $10

In this class, I’ll guide you in using aromatherapy for deeper, more restorative sleep. You’ll learn how scent works with the brain and nervous system to quiet the mind, ease tension, and prepare the body for rest. We’ll explore essential oil research and sleep, how aromas may influence dreams, and which oils support a calm, sleep-ready state. You’ll also learn how incorporate aromatherapy into your nightly routine.
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  • Ended Apr 17 at 7:30 PM UTC

Spring Reset: Aromatherapy for Energy, Mood, Allergies and More

  • Zoom
  • $10

In this class, I’ll guide you step-by-step through how to use essential oils safely and confidently to support your body and mind during the transition into spring. As the seasons shift, many people experience headaches, allergies, low energy, mood changes, and physical tension. You’ll learn how to use aromatherapy to ease these common challenges and feel more clear, balanced, and supported.
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  • Ended Jun 5, 2024 at 7:15 PM UTC

Exploring the Evidence: A Comprehensive Class in Essential Oil Research

  • Zoom
  • $15

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.
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Aromatherapy Gift Making Workshop

  • $5

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!
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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.

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