Tulsi (Expanded) for Stress Relief

Research suggests that tulsi (Ocimum tenuiflorum/sanctum) may help the body respond to stress through adaptogenic mechanisms, with evidence drawn from one randomized, double-blind, placebo-controlled trial, two narrative reviews of the broader scientific literature, and two broader reviews of plant adaptogens. The clinical trial found that a standardized holy basil extract reduced self-reported stress scores, lowered hair cortisol levels, and dampened physiological responses to a laboratory stress test compared to placebo over eight weeks. The supporting reviews indicate that tulsi's bioactive compounds — including rosmarinic acid, ursolic acid, and luteolin — may contribute to antioxidant, anti-inflammatory, and anxiolytic effects that plausibly underlie these stress-related findings, and the herb has been recognized in adaptogen literature since at least the 1990s. However, the overall body of evidence remains limited, as much of it rests on narrative reviews rather than independent controlled trials, and researchers across multiple studies have called for more rigorous clinical research before firm conclusions can be drawn.