The investigation into black turmeric (Curcuma caesia) has yielded promising results across several analytical dimensions, highlighting its potential as a valuable natural resource. Phytochemical analysis revealed that black turmeric is rich in a diverse array of bioactive compounds, including alkaloids, flavonoids, saponins, and terpenoids. These compounds are known for their therapeutic properties, suggesting that black turmeric could be a significant source of natural bioactive with potential health benefits. In antimicrobial testing, black turmeric extract demonstrated considerable activity against a range of pathogenic microorganisms, indicating its potential as a natural antimicrobial agent. This efficacy supports its application in developing new treatments or preventive measures for infections. Additionally, the antioxidant activity assays confirmed black turmeric’s strong ability to neutralize free radicals which is crucial in combating oxidative stress and related diseases. The observed high radical scavenging activity and favourable lethal values underscore its potential as a potent antioxidant. Collectively, these results underscore black turmeric's significant potential in various applications including pharmaceuticals, nutraceuticals, and functional foods. The comprehensive data supports further research and development to fully explore and harness the therapeutic and preventive capabilities of black turmeric which could lead to valuable contributions to health and wellness