Efficacy and Safety of an Essential Oil-Based Product System for Immune Support

Inclusion Criteria: * Healthy male or female participants aged 18 to 45 years * Able to read, write, and understand English * Willing and able to attend study visits at the study site * Willing to comply with study procedures, including daily use of assigned study product for 30 days * Willing to refrain from use of essential oils (topical, aromatic, or internal) outside of the study during the study period * If previously using essential oils regularly (defined as more than 3 times per week for 2 or more weeks in the past month), must complete a washout period of at least 1 month prior to enrollment Exclusion Criteria: * Known asthma, chronic obstructive pulmonary disease (COPD), chronic lung disease, heart disease, or other medical condition that would make inhalation of essential oils unsafe, as determined by the investigator * Known allergy or hypersensitivity to essential oils or components of the placebo preparation * Current use of tobacco products, including smoking, vaping, or chewing tobacco * Use of recreational drugs * Pregnant or breastfeeding, or pregnancy within the past 3 months * Current regular use of essential oils (defined as more than 3 times per week for 2 or more weeks within the past month) without completion of a 1-month washout period * Initiation of new botanical supplements during the study period * Any medical, psychiatric, or social condition that, in the opinion of the investigator, would interfere with safe participation or study compliance