Holy basil functions as an adaptogen, enhancing the body's natural response to physical and emotional stress. Adaptogenic herbs do not alter mood, but rather, they help the body function optimally during times of stress.1,7
Multiple scientific studies examining this property of Ocimum sanctum have found that supplementation with various extracts of holy basil decrease stress hormone levels, corticosterone in particular.11-16
Lower levels of corticosterone are associated with improved mental clarity and memory, and long-term, can reduce the risk of age-related mental disorders.17
So, exactly what makes it work?
Holy basil leaves are a natural source of many important compounds that provide a wide variety of health benefits.1,2
Eugenol and caryophyllene are aromatic compounds, so named because of their pleasing fragrance or “aroma”. These compounds are present in many plants, including holy basil, and have long been used in essential oils because their fragrant scent is said to elevate both mood and spirit. Scientific studies have shown that eugenol, in particular, helps to combat stress and enhance mental clarity. Research has also shown that the triterpenoic acids isolated from holy basil effectively improve the body's response to stress.13-16