Suntheanine is a brand of synthetic L-theanine. It is considered the highest grade L-theanine you can get, but not sufficiently better enough than the others to pay extra for it.
300mg of L-theanine is equivalent to about 12 to 38 cups of tea (tea naturally has a wide range of L-theanine content, depending on the tea and how it is processed). Up to 1,200mg daily is considered safe, however, like with all drugs, you should only take as much as needed to get the effect you want.
300mg of L-theanine is equivalent to about 12 to 38 cups of tea (tea naturally has a wide range of L-theanine content, depending on the tea and how it is processed). Up to 1,200mg daily is considered safe, however, like with all drugs, you should only take as much as needed to get the effect you want.