Is there a nootropic that is stimulant But not anxiety-inducing?

[Mada_]

In theory you could pair your stimulant with L-theanine, that's supposed to chills you out. 

Matcha tea/green tea already has this in it, but I've found it doesn't really wake me up that much. 

[Username]

@Mada_ L-theanine concentration in a green tea is almost negligible. Black tea has much higher concentration but it's still barely noticeable.