Negative bias
Safety legislation does not always accord with current knowledge on safety, for the simple reason that new scientific data are always being published. Guidelines are periodically made more stringent, but they are almost never loosened, even when new information...Cats and essential oil safety
Some quite strong feelings and opinions have been expressed about essential oils and cats, and a frequently asked question is “Is it safe to diffuse essential oils around cats?”. Diffusing essential oils can be toxic to humans if it’s over-done,...Personal Care Truth
Why I am one of the “experts” at Personal Care Truth. We human beings have a strong emotional attachment to our beliefs, and our actions are not always logical. Take, for example, the green movement. Are you a “green consumer”? I like to think that I am. Do you want...Can essential oils raise blood pressure?
The status quo, the widely believed “wisdom” of the day, is always difficult to change, however illogical or wrong it may be. Blood letting had been widely used for 1,500 years before physicians figured out that it was not, after all, the ideal go-to therapy for all...Is clary sage oil estrogenic?
According to Franchomme & Pénöel (1990), clary sage oil is estrogen-like, due to its content of sclareol, which is said to be structurally similar to human estrogens. The sclareol content of clary sage oil is given as 1.6-7.0%. In gas chromatographic analyses of...The Tisserand Institute
Visit The Tisserand Institute for the latest from Robert Tisserand in the science and the effective, safe and sustainable use of essential oils in all aspects of aromatherapy.