New research shows drinking No1 Rosemary Water improves memory by up to 15%
Tests conducted at Northumbria University show drinking concentrated No1 Rosemary Water improves cognitive performance. The findings have been published by scientists in the Journal of Psychopharmacology.
The research conducted by Dr Mark Moss is the first piece to be published on the benefit of drinking rosemary extract. The experiment used concentrated rosemary shots from No1 Rosemary Water, the only commercially available drink that combines rosemary extract with spring water and no other additives.
The newly published research builds on Dr Moss’ earlier trials showing the benefits of rosemary aroma in boosting memory function*.
About the trial - key findings
Dr Mark Moss and the team conducted a series of tests to measure cognitive performance, focusing on memory.
These tests were designed to assess the participants’ capability to retain and manipulate information. Across a number of tests, the group drinking No1 Rosemary Water saw an improvement in their ability to recall information and complete their cognitive tasks.
The test participants were each given 250ml of concentrated No1 Rosemary Water. 20 minutes after ingesting the shots, the experimental group performed the tasks while having their brain blood flow measured to assess how efficiently the body was extracting energy compared to the control group.
Those drinking No1 Rosemary Water shots saw an average increase of 15% in performance as well as an increase in the levels of deoxygenated red blood cells flowing through their brain. The researchers believe this indicates that the brain is extracting the energy it requires to perform the task more efficiently.
Bullets of findings:
Long-term and working memory tasks: 15% average improvement in a series of selected memory tasks in experimental group compared to placebo group. The current study therefore supports the body of evidence that rosemary has the potential for enhancing some memory-based aspects of cognitive functioning.
Brain blood flow: statistically significant increased levels of deoxygenated blood in the brain compared to placebo group. The study is the first evidence of a cerebrovascular benefit from the ingestion of rosemary and suggests improved extraction of oxygen in the control group during cognitive tasks.
Dr Mark Moss believes this study adds to the accumulation of studies already carried out suggesting that “rosemary offers a number of interesting possible health promoting applications, from antioxidant and anti-microbial to hepatoprotective and antitumorigenic activity.”
In particular, the team believe the presence of 1,8-cineole and rosmarinic acid, both found in No1 Rosemary Water, may be important in delivering improved cognitive performance.
He went on; “The results of this research show there are statistically reliable improvements in memory function thanks to the ingestion of No1 Rosemary Water. In fact, I’d say that the shots act like a turbo charger for the brain.”
No1 Rosemary Water is developed using a unique and secret combination of extraction processes. The team use only fresh rosemary (not dried) and the herb is cold brewed to ensure that all the active compounds found in nature are extracted. This is not a flavour or essence.
History of rosemary
Throughout history, rosemary has been famous for its medicinal properties and its ability to improve memory.
From the alchemists of the past to modern day practitioners of aromatherapy, there is widespread acknowledgement of its power and benefits.
Rosemary has, in fact, been associated with memory enhancement since ancient times. Ancient Greek students wore garlands of rosemary in exams and it has been referred to in literature of all kinds, as the herb of remembrance for hundreds of years.
Shakespeare’s Hamlet, Act 4: Scene 5: “There’s rosemary, that’s for remembrance. Pray you, love, remember.”
Today, science may finally be able to prove them right.
*Historically it has been associated with memory and some studies suggest that this reputation may not be without substance. Completion of computerised tasks by healthy young adults in cubicles infused with Rosemary aroma have demonstrated enhancements on long term memory performance compared to no aroma . More recently Rosemary aroma has been shown to deliver improvements in prospective memory , and visual and numerical memory . A number of studies have combined objective performance measures with subjective evaluations and physiological measurements. Diego and colleagues  found Rosemary aroma improved aspects of performance, and produced feelings of increased alertness and reduced anxiety. Importantly, these were matched with electroencephalography (EEG) recordings that showed decreased frontal alpha and beta power, suggesting increased alertness. Supporting evidence of these phenomena have been provided in a study that also reported increases in heart rate, blood pressure and respiratory rate during exposure to Rosemary aroma . With regard to acute orally administered Rosemary, Laybourne and colleagues found similar effects on long term memory as those for the aroma when administering 1600mg of dried herb in young participants , and improvements in memory retrieval speed have been reported in an elderly sample following a 750mg dose , although high doses (6000mg) produced negative effects. A recent chronic study  found that a 500mg dose delivered twice daily for a month improved
both prospective and retrospective memory compared to placebo in a student sample.
References relating to other Rosemary studies
1. Moss, M., et al., Aromas of Rosemary and Lavender essential oils differentially affect cognition and mood in healthy adults. International Journal of Neuroscience, 2003. 113(1): p. 15-38.
2. Moss, M., Half way to Scarborough fair? The cognitive and mood effects of rosemary and sage aromas. Phytothérapie, 2014: p. 1-6.
3. Filiptsova, O., et al., The essential oil of rosemary and its effect on the human image and numerical short-term memory. Egyptian Journal of Basic and Applied Sciences, 2017. 4(2): p. 107-111.
4. Diego, M.A., et al., Aromatherapy positively affects mood, EEG patterns of alertness and math computations. International Journal of Neuroscience, 1998. 96(3-4): p. 217-224.
5. Sayorwan, W., et al., Effects of inhaled rosemary oil on subjective feelings and activities
of the nervous system. Scientia pharmaceutica, 2012. 81(2): p. 531-542.
6. Laybourne, G., et al. Effects of acute oral administration of rosemary and peppermint on cognition and mood in healthy adults. in Journal of Psychopharmacology. 2003. SAGE PUBLICATIONS LTD 6 BONHILL STREET, LONDON EC2A 4PU, ENGLAND.
7. Pengelly, A., et al., Short-term study on the effects of rosemary on cognitive function in an elderly population. Journal of medicinal food, 2012. 15(1): p. 10-17.
8. Nematolahi, P., et al., Effects of Rosmarinus officinalis L. on memory performance, anxiety, depression, and sleep quality in university students: A randomized clinical trial. Complementary Therapies in Clinical Practice, 2018. 30: p. 24-28.