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Essential Oil Research Library

in Knowledge Hub

Research summaries are provided for educational purposes only and have not been evaluated by the FDA. Our oils are not intended to diagnose, treat, cure, or prevent any disease.

Browse by Essential Oil


Eucalyptus Essential Oil

Eucalyptus is one of the most clinically studied oils for respiratory support. Its primary aromatic compound, 1,8-cineole, has been examined across decades of research for its role in cough relief, airway clearance, and antimicrobial activity. Systematic reviews and meta-analyses have explored eucalyptus-based products in respiratory health, and ongoing research continues to investigate its anti-inflammatory and antibacterial properties..

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Geranium Essential Oil 

Geranium is one of the most studied floral oils in clinical anxiety research, sharing key aromatic compounds — particularly citronellol and geraniol — with rose oil. Randomized controlled trials have examined geranium oil inhalation in cardiac, surgical, and obstetric settings, exploring its effects on self-reported anxiety and stress. Its rose-adjacent floral profile makes it a frequent choice in formulations seeking those aromatic notes at a more accessible cost.

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Lavender Essential Oil 

Lavender is the most extensively studied essential oil in clinical research, with hundreds of randomized controlled trials examining inhalation aromatherapy for stress, anxiety, sleep quality, and recovery from medical procedures. Researchers have explored its effects in diverse settings, from dental visits to postpartum recovery to postoperative care. Lavender's primary aromatic compounds, linalool and linalyl acetate, continue to be studied for their interactions with the body's calming pathways.

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Lemon Essential Oil 

Lemon essential oil has been studied for its uplifting and alertness-supporting effects. Its primary aromatic compound, limonene, is among the most researched citrus terpenes in aromatherapy. Clinical research has examined lemon and related citrus aromas in nursing, dental, and pre-procedural settings, exploring their effects on mood, focus, and self-reported anxiety.

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Peppermint Essential Oil 

Peppermint is widely studied for its effects on alertness, cognitive performance, nausea relief, and tension headaches. Clinical research has examined peppermint oil inhalation in postoperative, chemotherapy-related, and pregnancy-related settings, and separate studies have measured its effects on attention, memory, and cerebral blood flow. Its primary aromatic compound, menthol, continues to be a focus of both topical and inhalation research.

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Rose Essential Oil 

Rose essential oil has been studied for its calming and mood-supportive effects, with research exploring its role in stress reduction, sleep quality, and emotional well-being. Newer studies have begun examining how sustained scent exposure may influence areas of the brain associated with memory and emotional processing. The body of research continues to grow, with rose oil's aromatic compounds — particularly citronellol, geraniol, and phenylethanol — remaining a focus of clinical and pharmacological interest.

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Rosemary Essential Oil 

Rosemary essential oil has been studied for its effects on alertness, concentration, and memory, with research extending across both behavioral cognitive measures and brain imaging. Reviews have examined its neuroprotective potential alongside other aromatic herbs, with mechanisms involving cholinergic and antioxidant pathways. Rosemary is also one of the most studied essential oils in topical hair care research.

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Sweet Orange Essential Oil 

Sweet orange is one of the most accessible citrus oils studied for its mood-lifting and calming properties. Clinical research has examined sweet orange essential oil inhalation in pediatric dental and pre-procedural settings, where it has been studied alongside other citrus aromas for its effects on self-reported anxiety. Its primary aromatic compound, d-limonene, remains a focus of ongoing research into the calming, uplifting profile of citrus oils.

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