About...
If you use essential oils topically, you’ll want to take this free course!
Using certain essential oils topically with sun exposure (or in tanning beds) can damage the skin. This kind of phototoxic damage to the skin can be permanent.
Learn which essential oils are phototoxic, and how to safely use phototoxic essential oils when applying to the skin and exposing yourself to the sun.

Lea Jacobson
Certified Clinical Aromatherapist
Lea Jacobson is a Certified Clinical Aromatherapist Scholar's Program graduate from Aromahead Institute. Her website, Using Essential Oils Safely is home to educational advice and empowering information about using essential oils safely. The Using Essential Oils Safely facebook group founded and run by Lea and her team has over 140,000 members and hundreds of new members joining each week.
Author of her bestseller Essential Oil Profiles (available as a full color print book as well as an ebook) is based off the information in the popular Top 60 Essential Oils APP, the print version has sold out in days each time it's been offered. Other books by Lea: The TRUTH About Essential Oil Safety, and the Hydrosols Quick Start Guide.
She is the creator of Safe Essential Oil Labels, designed to wrap around any size or brand bottle, as well as apps for essential oils and carriers, and hydrosols.
You can find FREE classes here: Free Essential Oil Classes, and sign up for the Using Essential Oils Safely BASICS course Lea teaches where you can earn your "Essential Oil Safety Advocate" title.
Lea is Professional level member of the Alliance of International Aromatherapists and received her herbalist certification through The Herbal Academy of New England.
Businesses, groups, and individuals can hire Lea to consult on safety, product formulation, and more on her website Lea Jacobson CCA.
Contents...
Phototoxicity
Welcome to the course!
Lesson 1: Phototoxicity, Photoallergy, Photosensitization - Oh My!
L1 Quiz
Lesson 2: Signs of Phototoxicity
L2 Quiz
Lesson 3: Essential Oils Containing Furanocoumarins
L3 Quiz
Lesson 4: How to Avoid a Phototoxic Reaction
L4 Quiz
Lesson 5: Essential Oils that Are Safe to Use in the Sun
L5 Quiz
Lesson 6: Safe Dilution Guidelines for Potentially Phototoxic Essential Oils
L6 Quiz
CONGRATULATIONS!
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Reviews (19)
by Tracie Strong
by Melissa LaHuis
Phototoxic Essential Oils
by Laura Miller
Excellent information. Enjoyed the way the information was presented and then the quiz so I knew I was retaining what I had just learned. Thank you for offering this information.
by Tracie Strong
by Melissa LaHuis
Phototoxic Essential Oils
by Laura Miller
Excellent information. Enjoyed the way the information was presented and then the quiz so I knew I was retaining what I had just learned. Thank you for offering this information.
PhototoxicEssential Oils Course
by Cynthia C Ward
I enjoyed taking this course . It was short but filled with a lot of information. The multiple quizzes were very helpful to test my knowledge of information learned as the course proceeded. I highly recommend this course.
Very good!
by Teri Berry
Answered all my questions about phototoxic oils and what safe dilution rates are for them! :D
Nice!
by Dany Pagani
Educational! I was a bit thrown by "one page of info and then a quiz, then another page of info and then a quiz" but it's a minor thing. Perhaps a little more info per module, then about 3 questions on the quiz may be an option?
Essential
by Danae Garriga
Short and sweet, full of very important information. Straight forward and easy to understand, well worth 20 minutes for anyone serious about essential oil safety :)
by Andrea Torres
Short course for the rooky
by Stephan Kassner
Smart course to start you off on the right foot. No information overload and VERY easy to follow. Wetted my appetite! Thanks
Short course for the rooky
by Stephan Kassner
Smart course to start you off on the right foot. No inormation overload and VERY easy to follow. Wetted my appetite! Thanks
Short and Sweet
by Debbie Behrens
I loved how the course progressed with bite sized nuggets of information. The immediate follow up quiz was great confirmation of information just learned. I really liked the way you set up the quiz. After submitting your answer, you click the green "check" box. Not only are you told that your answer is correct, but the correct information is re-stated as an additional reinforcement of this information. Not just a simple "correct".
Thank you
Very Useful and Concise
by Roohi Qureshi
Nice review of the relevant information. I appreciated that it was evidence-based.
by sohair alborno
by sohair alborno
Good
by Karen Weber
This course is short and sweet and to the point. Thank you for a very digestible course!
Amazing!
by Emilia Kiyohara
Simple and informative!
by monica walker
A quick and simple lesson. Learned a significant amount in a short amount of time. Can't wait for more lessons like this on various EO topics! Thanks!
by Kat Davis
Phototoxic Essential Oils COURSE
by Jennifer Jacobs
I love this course. So much info and you have to take a test to see if you remember what you read. I learn a lot about phototoxic of essential oils. Thanks, Lea!