Rosemary (Rosmarinus officinalis) is a fragrant Mediterranean herb with a long history of traditional use and a growing body of modern research exploring its potential health benefits. Studies indicate that its key compounds, including rosmarinic acid and carnosic acid, exhibit notable antioxidant and anti-inflammatory properties that may help protect cells from oxidative stress. Research suggests that rosemary may support cognitive function and memory, with some studies linking even its aroma to improved alertness and mental clarity. Available as an herbal extract, essential oil, or simple tea, rosemary has also been investigated for its potential roles in supporting digestive health, promoting healthy blood circulation, and encouraging hair growth, though more large-scale human trials are needed to fully understand its effects.
Compare this supplementResearch suggests that rosemary shows promising effects on cognitive function across several study types, including r...
View studies →Research suggests that rosemary may support memory and cognitive function through several proposed mechanisms, includ...
View studies →Research suggests that rosemary and its key bioactive compounds — particularly carnosic acid, carnosol, and rosmarini...
View studies →The four studies provided do not directly investigate rosemary or its use for antioxidant support. The available rese...
View studies →Research suggests that rosemary may have some influence on local blood flow through its effects on adrenergic recepto...
View studies →The two studies provided do not contain research on rosemary or digestive health. One examines the Hyssop plant in re...
View studies →Research suggests that rosemary, both as an extract and as an oil, may offer several benefits for scalp and hair heal...
View studies →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Capsule | 400–1,000 mg | Daily | Antioxidant support and anti-inflammatory effects | Common in clinical trials examining rosemary leaf extract for oxidative stress markers |
| Extract | 500–750 mg | Daily | Cognitive function and memory enhancement | Based on RCTs including Pengelly et al. (2012) and Moss et al. studies on rosemary extract and cognition |
| Extract | 250–500 mg | Three times daily | Digestive health and dyspepsia relief | Traditional use and observational data; rosemary used in combination herbal preparations for GI complaints |
| Oil | 1–2 ml | Daily | Hair health and scalp circulation; topical application diluted in carrier oil | Based on Panahi et al. (2015) RCT comparing rosemary oil to minoxidil for hair growth |
| Powder | 2–4 g | Daily | General antioxidant support and blood glucose modulation | Based on studies using dried rosemary leaf powder; Aljabre et al. and related dietary supplementation trials |
| Topical | 2–3 ml | Twice daily | Hair loss (alopecia) and scalp blood circulation | Based on RCT by Panahi et al. (2015); applied twice daily for 6 months |