I would like to try an ECA stack, but caffeine does not agree with me . Is there anything else I can use instead of caffeine?

Was this a stupid question then?

I was wondering if something like Guarana Extract could be used instead?

Quoted from riley

Was this a stupid question then?

I was wondering if something like Guarana Extract could be used instead?

Only just seen this sorry mate, you dont have to have the caffiene in the eca stack at all tbh as the eph and aspirin will work well enough but you could use guarana as it is similar to caffiene but more powerfull so you might get even better benefits from it

Eph alone like ricky stated is powerfull , So there is no real need to take caffeine if it does not agree with you.

thanks for informing me