60 mg of Ginko bilba or 200 mg L-theanine , twice a day, is safe? Do these have a synergistic effect?

Both 60 mg of Ginkgo biloba and 200 mg of L-theanine twice a day are generally considered safe, but it's important to be aware of potential side effects and interactions.

1. Ginkgo biloba:
   • The typical dose of Ginkgo biloba extract ranges from 40-80 mg three times a day.
   • At 60 mg twice a day, you are within the lower end of the recommended range, which is generally considered safe.
   • However, there is a lack of conclusive evidence supporting the use of Ginkgo biloba to prevent or slow dementia or cognitive decline.
2. L-theanine:
   • The typical dose of L-theanine ranges from 100-200 mg three times a day.
   • At 200 mg twice a day, you are within the recommended range, which is generally considered safe.
   • L-theanine is well-tolerated, and adverse effects are rare, even at higher doses.
3. Synergistic effect:
   • Ginkgo biloba and L-theanine have different mechanisms of action and effects on the body.
   • Ginkgo biloba is believed to improve cerebral blood flow and has antioxidant properties.
   • L-theanine, on the other hand, is an amino acid that can help with relaxation, reduce stress, and improve focus.
   • There is no conclusive evidence suggesting a synergistic effect between Ginkgo biloba and L-theanine when taken together.
   • However, some users report feeling a calming and focused effect when taking the two together.

In conclusion, both 60 mg of Ginkgo biloba and 200 mg of L-theanine twice a day are generally safe doses. While there is no established synergistic effect between the two, they can be taken together without significant concerns. However, as with any supplement, it's important to monitor for any adverse effects and to consult with a healthcare professional if you have specific health concerns or questions.