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 resource that provides education worldwide regarding aromatherapy and holistic health. I have written three books in the past year on aromatherapy. I currently am working with hospital systems bringing aromatherapy to the bedside to help support patients. I am an instructor through The School for Aromatic Studies and teach Aromatherapy Certification courses. My sincerest desire is to bless others with the knowledge I have gained through combining my education in modern medicine and holistic health.

Ebooks & PDF Downloads

  • $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!

  • $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!

  • $15

Science of Essentials: The Essential Guide for Using Aromatherapy for Health and Healing

The must-have in-depth evidence-based guide for essential oil users. This 100+ page eBook will equip and empower you on your journey of using essential oils to promote health and healing. You will gain knowledge about what oils to use for what purpose, how to use essential oils safely, tips, tricks, recipes and more!

Webinars & Classes

  • $10

Aromatherapy Skin Care Class

  • Oct 27, 2022 at 10:00 AM PDT

A comprehensive aromatherapy skin care class all about skin types, skin care routines and how to utilize essential oils to put your best face forward. You will learn what variables impact your skin and how aromatherapy can support common skin problems.

  • $10

Aromatherapy for Anxiety

  • Closed
  • Sep 20, 2022 at 10:00 AM PDT

An emotion focused class helping you rethink and further understand anxiety. Feel empowered to take charge of your emotional wellbeing using aromatherapy to guide you.

  • $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.

  • $10

Introduction to Essential Oils Class

  • Closed
  • Oct 5, 2023 at 12:00 PM PDT

In this class I'll walk you through how to use essential oils safely to support your physical, mental and emotional needs. If you are desiring to use aromatherapy to support your overall wellbeing but aren't sure where to start, or, maybe you have been using essential oils for a long time, but desire to learn more, then this is the class for you!

  • Free

Mindful Menstruation Class

  • Feb 8, 2024 at 11:00 AM PST

In this class you will learn about the shifts of estrogen, progesterone and testosterone that occur daily for women and how they impact our moods, motivation, energy, libido, confidence and more! You will also gain knowledge about how aromatherapy can help support these fluctuations in hormones. Learn how to live in sync intuitively with your cycle to take better care of yourself.

  • Free

Using Essential Oils Topically

  • Oct 6, 2022 at 10:00 AM PDT

A class to empower you to confidently and safely use your essential oils topically. I will be teaching you about how essential oils absorb topically, why and when it can be beneficial to use them in this way, and where to apply them to support the body.