Frequently Asked Questions
Discover the answers to your frequently asked questions about our products and services.
Guayusa has been used by indigenous communities in the Amazon for hundreds of years — long before it became an ingredient in modern wellness products. It's recognized for its naturally balanced caffeine content, rich antioxidant profile, and the presence of L-theanine and theobromine, which work together to produce calm, focused energy without the spike and crash of conventional drinks. Shrub Fuel cold-brews the whole leaf and puts nothing artificial in the can. The USDA Organic certification is on the label, verified independently by CCOF. If you're still on the fence — a 4-pack is $15. Just try it.
Yes. Shrub Fuel is certified organic by CCOF, one of the most respected organic certifiers in the United States. That certification means every ingredient — including the single-origin guayusa itself — has been independently verified to meet USDA Organic standards. No pesticides, no synthetic inputs, and no genetically modified ingredients.
Yes — completely. Log into your account at ShrubFuel.com, go to Manage Subscriptions, and you can pause, skip a delivery, or cancel whenever you want. No cancellation fees, no questions asked. Changes must be made before your next scheduled order processes.
Guayusa (gwhy-yu-sa) is a whole leaf native to the Amazon that indigenous communities in South America have used for centuries as a natural source of energy and focus. It contains naturally occurring caffeine, antioxidants, and theobromine — a compound that moderates how your body absorbs caffeine, which is why Shrub Fuel delivers clean, sustained energy without the jitters or the crash.
Each can contains approximately 150mg of naturally occurring caffeine from the guayusa leaf — comparable to a strong cup of coffee. Because it comes from a whole cold-brewed leaf rather than isolated caffeine extract, most people find the energy feels smoother and lasts longer than a typical energy drink.
It's not just tea. Shrub Fuel has a smooth, bold berry flavour with zero bitterness — which surprises most people who expect it to taste like green tea or a health supplement. There are no added sugars or artificial sweeteners, so what you're tasting is the cold-brewed leaf itself. It's easy to drink and genuinely good.
Most conventional energy drinks are built around isolated synthetic caffeine, added sugars or artificial sweeteners, and a long list of additives. Shrub Fuel starts with the whole guayusa leaf — slow cold-brewed using a proprietary process that preserves its full nutrient profile. It's USDA Organic certified, which means every ingredient meets strict federal standards. No lab-derived caffeine, no synthetic inputs, no shortcuts.
Cold-brewing means we steep whole guayusa leaves in cold water rather than using high-heat extraction. Most energy drinks use heat to quickly pull caffeine out of a plant and discard the rest. Shrub Fuel's proprietary cold-brew process preserves the full nutrient profile of the leaf — including the antioxidants, theobromine, and L-theanine that make the energy feel different. What ends up in the can is the whole leaf, nothing stripped away.
Shrub Fuel is available at select retail locations across the US. Visit our Where to Buy page to find the nearest stockist. If your local store doesn't carry it yet, you can order directly through our website — we ship across the United States.
Please inspect your order when it arrives. If anything is damaged, defective, or incorrect, contact us at info@shrubfuel.com right away with your order number and a photo of the issue. We'll sort it out quickly — whether that means a replacement or a full refund.
