Ashwagandha is an ancient Ayurvedic herbal medicine that has plenty of promise for the modern world. Studies have shown it to be a potent adaptogen that may reduce anxiety, alleviate depression, and help the body cope with stress.
Ginkgo biloba is a very old supplement that's gaining a new reputation as an effective natural nootropic. Used for thousands of years as a general health tonic, ginkgo biloba is now a popular memory enhancer, cognition improver, and brain protectant.
L-theanine is a naturally occurring amino acid found primarily in green tea leaves. It does an excellent job at relaxing without being a sedative making it an excellent supplment to take with stimulants.