Clary Sage (Salvia sclarea): Benefits, Dosage, Safety & Evidence

Frequently asked questions

How does Clary Sage work for menstrual cramps?

Clary Sage essential oil works primarily through its active compounds, linalyl acetate and linalool. These constituents possess antispasmodic properties that relax smooth muscle tissue, making the oil effective for relieving menstrual cramps and digestive spasms. The oil also interacts with the olfactory system to modulate the limbic system, reducing cortisol levels and inducing a state of relaxation. Evidence level B supports these antispasmodic and anxiolytic mechanisms.

Does Clary Sage interact with medications or alcohol?

Yes, Clary Sage has significant interactions with alcohol and central nervous system depressants. The essential oil enhances the sedative effects of alcohol, potentially leading to severe drowsiness, headache, or euphoria. It may also potentiate the effects of sedative medications like benzodiazepines. Due to its potential estrogenic activity attributed to sclareol, it should be used cautiously alongside hormone replacement therapies. Evidence level B/C applies to these interactions.

What is the recommended dosage for Clary Sage tea or oil?

The recommended adult dosage for Clary Sage depends on the preparation method. For tea, use 1-2 grams of the dried herb infused in hot water. For aromatherapy, 2-3 drops of essential oil are sufficient for diffusion or diluted topical application. Internal use of the essential oil is generally discouraged without professional guidance due to potency. Dosage recommendations are based on traditional use and established safety margins.

Is Clary Sage essential oil safe during pregnancy?

Clary Sage is contraindicated during pregnancy and is rated as unsafe. The essential oil contains sclareol, a compound that can stimulate uterine contractions, posing a risk of miscarriage or premature labor. While midwives sometimes use it to support labor contractions, it should never be used by pregnant individuals without strict professional guidance. It is also contraindicated for those with estrogen-sensitive cancers due to potential hormonal modulation.

What is Clary Sage essential oil used for?

Clary Sage is widely used in aromatherapy for women's health issues, particularly for alleviating menstrual cramps and PMS symptoms. It acts as a strong antispasmodic and relaxant, helping to reduce stress, anxiety, and digestive discomfort. Historically, it was used for eye conditions, earning the name 'clear eye,' though modern usage focuses on emotional balance and physical relaxation. Evidence level B supports its efficacy for relaxation and antispasmodic effects.

PubMed-compiled information sheet

This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.

Compiled from 30 PubMed articles · model: gemma4:31b

Summary

Clary sage (Salvia sclarea L.) is a medicinal herb from the Lamiaceae family valued for its essential oil and bioactive compounds like sclareol [PMID:39755684, PMID:36263135].

Background

Salvia sclarea L. is a medicinal plant used in the food, cosmetic, and perfume industries [PMID:36982252, PMID:40650212]. It is characterized by a chromosome-level genome of approximately 499.03 Mbp [PMID:39755684].

Traditional uses

Empirical medicine has focused on its use for arthritis, oral inflammation, and digestive system diseases [PMID:36263135]. It is also traditionally used to manage common human ailments and consumed as a food product [PMID:29772456].

Active compounds

The plant contains sclareol (a labdane diterpene alcohol), linalyl acetate, linalool, and rosmarinic acid [PMID:36263135, PMID:39755684, PMID:36982252, PMID:29772456]. Other identified compounds include (E)-caryophyllene, p-cimene, a-terpineol, geranyl acetate, and various flavonoids such as apigenin and luteolin [PMID:36982252, PMID:7765213].

Mechanism of action

Sclareol may inhibit ocular neovascularization [PMID:40347925] and suppress colorectal cancer cell proliferation via ferroptosis involving SLC7A11/GPX4 modulation [PMID:40876907]. Inhalation of clary sage oil may exert antidepressant-like effects by modulating dopamine activities [PMID:20441789].

Clinical evidence

Evidence BBlood Pressure

Inhalation of 5% clary oil led to a significant decrease in systolic blood pressure compared to control and lavender oil groups in female patients with urinary incontinence [PMID:23360656]

Evidence CAnxiety and Stress

Clary sage essential oil is used as an aromatherapy agent to relieve anxiety, stress, and depression [PMID:19831048]

Evidence DEndothelial Dysfunction

In rats, clary sage oil (5%, 10%, or 20%) was effective in treating chronic immobilization stress-induced endothelial dysfunction [PMID:25311097]

Evidence DBacterial Infections

Clary sage oil demonstrates antibacterial activity against Staphylococcus aureus, S. epidermidis, S. xylosus, and Pseudomonas aeruginosa [PMID:25821423, PMID:34770858, PMID:7765213]

Safety & adverse effects

Clary sage oil is considered safe for use as a sensory additive in animal feed at specific concentrations (e.g., 15 mg/kg for cattle, 20 mg/kg for dogs) [PMID:39545222].

Evidence summary

The evidence consists primarily of in vitro studies, animal models (rats/mice), and a small-scale randomized controlled trial. While there is strong preclinical evidence for antimicrobial and anti-inflammatory properties, human clinical data is limited.

PubMed sources

1.PMID: 36263135 (2022) — The bioactivities of sclareol: A mini review. · Frontiers in pharmacology
2.PMID: 39545222 (2024) — Safety and efficacy of a feed additive consisting of an essential oil derived from the flowering stems of Salvia sclarea L. (clary sage oil) for use in all animal species (FEFANA asbl). · EFSA journal. European Food Safety Authority
3.PMID: 19831048 (2009) — Essential oils and anxiolytic aromatherapy. · Natural product communications
4.PMID: 40347925 (2025) — Comprehensive multi-omics and pharmacokinetics reveal sclareol's role in inhibiting ocular neovascularization. · Phytomedicine : international journal of phytotherapy and phytopharmacology
5.PMID: 39911870 (2025) — Differential effects of clary sage (Salvia sclarea L.) oil and linalyl acetate on depression levels in diabetic foot ulcer patients with T2DM: a randomized blinded controlled trial.

Clary Sage

Sources & Citations

Calculate a safe dose of Clary Sage

White Sage

Lion's Mane

East African Sage

Frequently asked questions

Summary

Background

Traditional uses

Active compounds

Mechanism of action

Clinical evidence

Safety & adverse effects

Evidence summary

PubMed sources

Government sources

Clary Sage

Sources & Citations

Calculate a safe dose of Clary Sage

Related Herbs

White Sage

Lion's Mane

East African Sage

Frequently asked questions

Summary

Background

Traditional uses

Active compounds

Mechanism of action

Clinical evidence

Safety & adverse effects

Evidence summary

PubMed sources

Government sources