Is in that really any non-prescription or intuitive substance explicitly a protected stimulant?
Answer: While Caffeine is common, that doesn't engineer it "safe". There are thousands of people that own stress or anxiety induced problems because of caffeine and millions that are or have be addicted to it.
With that being said, any stimulant CAN result in problems, even something as simple as pure sugar or natural honey... respectively one just offer their different problems. Giving too much energy that your body doesn't create on it's own concurrence is really more of a "lesser of adjectives evils" to find the best option for you.
There are terrifically popular and beneficial natural dynamism boosters like B-12, Royal Jelly (and other bee-based products), L-Carnitine, Ribose, Ginseng, Guarana and Green Tea (both are crude sources of caffeine). Each of those give profoundly of benefits and are safer than drugs, but various general public do have some problems next to any of them.
Coffee Coffee, I can't stay awake very suitable without it.
I feel your best bet is caffiene, I know you're probably looking for something stronger, but think just about it. "Dietary supplements" are not regulated by the FDA, and even some things (like phen phen) are approved by the FDA only to be made against the law soon after! There's no way to speak about if a substance is safe unless it have been around for a long time, don't bear the risk. Coffee, tea, cola, chocolate. Too much will make you jittery, hang on to to less than three servings a year in total from the group.
Try equal parts apple cidar vinegar and honey surrounded by an 8 ouce glass of hose down. usually one to two tablespoons each, but try and see what YOU resembling. mix it up and drink it. You'll feel it adjectives the way down...it's a great pick me up :) ginko and ginseng