About Tulsi
Holy basil (Tulsi) is an adaptogenic herb from Ayurvedic medicine. Several RCTs show reductions in stress and anxiety symptoms at 300–600 mg/day of standardized extract, though study quality is mixed and most trials are small (n < 100). Extracts are typically standardized to eugenol, ursolic acid, or rosmarinic acid content. Branded forms include Holixer and OciBest. Generally well tolerated. No established RDA/UL.
What Tulsi supports
- May reduce stress and anxiety symptoms
- Traditional adaptogenic use for general resilience
How much Tulsi to take
The RDA prevents deficiency. The effective range is what clinical trials used to actually move the outcome.
Effective
300–600
mg
Standardized extract range from stress/anxiety RCTs. Whole-leaf equivalent is 1–2 g/day. Higher doses (1,000+ mg extract) lack incremental clinical support.
Clinical evidence
Moderate clinical evidence. Several clinical trials show stress and anxiety reductions, though study quality is mixed
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