Here is an article that provides four sources of reliable, accurate online information about essential oils:
http://info.achs.edu/blog/credible-essential-oil-databases-for-research
In a nutshell, the four sources are --
Aromaweb, https://www.aromaweb.com/
American Botanical Council, http://abc.herbalgram.org/site/PageServer?pagename=Herbal_Library
Science Direct, http://www.sciencedirect.com/search?qs=Essential Oil
PubMed at the National Institute of Health, https://www.ncbi.nlm.nih.gov/pmc/?term=Essential+oils
Another good resource is the book "Essential Oil Safety" by Tisserand and Young, currently in its second edition. It can be found on Amazon and other booksellers.
http://info.achs.edu/blog/credible-essential-oil-databases-for-research
In a nutshell, the four sources are --
Aromaweb, https://www.aromaweb.com/
American Botanical Council, http://abc.herbalgram.org/site/PageServer?pagename=Herbal_Library
Science Direct, http://www.sciencedirect.com/search?qs=Essential Oil
PubMed at the National Institute of Health, https://www.ncbi.nlm.nih.gov/pmc/?term=Essential+oils
Another good resource is the book "Essential Oil Safety" by Tisserand and Young, currently in its second edition. It can be found on Amazon and other booksellers.