🏛️ Verified NIH Record • Updated 2026-05-07

Essential Oil Inhalation and Acute Stress Response in Healthy Adults (NCT07473544)

Evaluation of Aromatic Essential Oils in Conditions of Stress and Relaxation - A Double-Blind, Randomized, Placebo-Controlled Trial

🔵 Active, Not Recruiting Observational / Diagnostic 📋 Clinical Research Protocol Sponsor: dōTERRA International

🩺 Plain-English Summary (8th-Grade Level)

This randomized, double-blind, placebo-controlled study evaluates the acute physiological and subjective responses to essential oil inhalation in healthy adults. Participants are assigned to inhale either an essential oil or a placebo via an aroma stick during standardized laboratory procedures designed to induce temporary psychosocial stress (Trier Social Stress Test - Group version) and during a guided relaxation session. Physiological responses, including heart rate, heart rate variability, and electrodermal activity, are measured using a wearable sensor. Subjective stress and affect are assessed using validated questionnaires and visual analog scales. The purpose of this study is to characterize short-term autonomic and self-reported responses associated with essential oil inhalation under controlled experimental conditions. This study is exploratory and is not intended to diagnose, treat, or prevent any medical condition.

Who can join: Review the eligibility criteria below.

Location: dōTERRA International — Pleasant Grove, Utah

Age range: 18 Years to 45 Years

🧪 Interventions in This Study

  • Essential Oil Inhalation (OTHER)
  • Placebo Aroma Stick (OTHER)

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria ↗

📍 All Participating Trial Locations (1 Sites)

  • dōTERRA International — Pleasant Grove, Utah

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗