Nikhil Prasad Fact checked by:Thailand Medical News Team Apr 07, 2026 2 hours, 4 minutes ago
Medical News: A new scientific study has revealed that an essential oil derived from a common plant may significantly enhance memory and brain function, offering fresh hope for natural cognitive support.
A natural plant oil shows promising ability to enhance memory and brain function safely
Natural Plant Shows Powerful Brain Effects
Researchers investigated the effects of Tanacetum vulgare - commonly known as tansy - focusing on its essential oil and its impact on memory and learning. The study was conducted by scientists from the Medical University of Plovdiv, Bulgaria, including experts from the Department of Pharmacognosy and Pharmaceutical Chemistry, Department of Pharmacology, Toxicology and Pharmacotherapy, Department of Anatomy, Histology and Embryology, Department of Physiology, Department of Medical Informatics, Biostatistics and E-Learning, the Research Institute at the Medical University of Plovdiv, and the Center for Competence PERIMED-2.
The findings suggest that this plant-based oil could enhance specific brain functions, particularly those linked to memory formation and recall.
How The Study Was Conducted
Scientists used laboratory rats to evaluate how the essential oil affects different types of memory. The animals were given two different doses of the oil daily over 28 days. Various behavioral tests were then carried out to measure learning ability, memory retention, and recognition skills.
Importantly, the study also examined changes in the hippocampus - the part of the brain responsible for memory - along with levels of a key protein known as brain-derived neurotrophic factor (BDNF), which supports brain cell growth and communication.
Strong Improvements in Memory Performance
The results were striking. Rats that received the essential oil showed clear improvements in both short-term and long-term memory. In particular, those given the lower dose demonstrated stronger memory retention in certain tests, while the higher dose improved learning performance.
Spatial memory - used for navigation and understanding surroundings - also improved significantly. In maze-based tests, treated animals made more accurate choices and showed better recall compared to untreated ones. Recognition memory, which helps distinguish new objects from familiar ones, was also enhanced.
Interestingly, the oil did not affect general movement or anxiety levels, meaning the cognitive improvements were not due to increased activity or reduced stress, but likely direct effects on the brain.
Key Brain Protein Increased Without Damage
One of the most important discoveries involved BDNF, a protein essential for brain health. The study found that rats treated with the essential oil had significantly higher levels of BDNF in the hippocampus.
This
Medical News report highlights that increased BDNF is closely linked to better learning and memory, as it
helps strengthen connections between brain cells. Microscopic examination of brain tissue confirmed that the hippocampus remained structurally normal, with no signs of damage or toxicity.
Further analysis also showed that vital organs such as the liver, kidneys, heart, and lungs remained unaffected, indicating that the treatment was safe within the tested doses.
What Makes Tansy Oil Effective
The researchers believe the oil’s effects are due to its rich composition of natural compounds, especially monoterpenes like camphor, trans-chrysantenyl acetate, and cis-verbenol. These compounds are known for their antioxidant and anti-inflammatory properties, which help protect brain cells and improve neural communication.
Camphor, in particular, has been linked to reduced oxidative stress and improved signaling in the brain, both of which are crucial for maintaining cognitive function.
Conclusion
The study provides strong early evidence that Tanacetum vulgare essential oil may enhance memory and support brain health through natural mechanisms. By boosting BDNF levels and improving hippocampal function without causing damage, the oil shows promise as a potential cognitive enhancer. However, these findings are based on animal studies, and further research in humans is needed before any clinical recommendations can be made. If future studies confirm these benefits, this natural compound could become an important tool in addressing memory decline and supporting brain health in aging populations.
The study findings were published in the peer reviewed journal: Pharmaceutics.
https://www.mdpi.com/1999-4923/18/4/449
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