Petra Ratajc, PhD., Author at Tisserand Institute

Covid-19 and Anosmia: A video by Petra Ratajc, PhD

by Petra Ratajc, PhD. | Jan 27, 2021 | General

Petra Ratajc, PhD, explains how Covid-19 influences our sense of smell and why it causes anosmia – smell loss. For more information on Essential Oil Kinetics Masterclass with her, go...

Essential Oils and the Immune System: Q&A with Dr. Petra Ratajc

by Petra Ratajc, PhD. | May 7, 2020 | Aromatherapy

Do essential oils influence our immune system directly? Dr. Ratajc answered this question during her Essential Oil Kinetics Masterclass in April 2020, and we thought you might find her answer interesting. Please note that this is related to physiological effects...

What Is Aromatherapy? The Dividing Lines Between Feel-Good and Medicine

by Petra Ratajc, PhD. | May 15, 2019 | Aromatherapy, Commentary

by Petra Ratajc, PhD Aromatherapy’s unique appeal is that something natural and fragrant can have beneficial effects on both body and mind at the same time. This therapeutic duality was recognized independently by ancient civilizations that incorporated aromatic...