Stimulants
Guarana
Definition
What it is
Guarana: seed extract from the Amazonian guarana plant containing approximately twice the caffeine concentration of coffee beans. Used in energy drinks and supplements as a botanical caffeine source; US labels are not required to quantify caffeine from botanical sources, making total caffeine intake difficult to assess.
On the label
Label names covered by this flag
- guarana
- guarana extract
- guarana seed extract
- paullinia cupana
Regulation
Regulatory status
No bans or restrictions are recorded for this ingredient in the jurisdictions clearlabel tracks (US, EU, UK, Canada, Japan, Australia/NZ, Brazil).
Explainer
In plain language
Guarana is an extract from the seeds of a climbing plant native to the Amazon. The seeds are naturally high in caffeine, roughly twice the concentration found in coffee beans, which is why guarana is added to energy drinks and supplements as a botanical caffeine source. It also contains related compounds like theobromine and tannins.
Assessment
Why it is flagged
The core issue is not the plant itself but caffeine visibility. US labels are not required to state how much caffeine comes from botanical sources like guarana, so a product can deliver a meaningful caffeine dose that never appears as a number on the label. Stacked with other caffeine sources in the same drink, total intake becomes hard to estimate. Caffeine at higher intakes is associated with jitteriness, raised heart rate, sleep disruption, and anxiety in sensitive people, and the FDA has noted the risks of concentrated and combined caffeine products. Clear Label flags guarana at low severity so hidden caffeine is at least visible, and so you can test how it tracks against your own sleep or energy logs.
In the aisle
Where it commonly shows up
- Energy drinks and shots
- Pre-workout supplements
- Weight-loss and fat-burner products
- Some flavored sodas
- Caffeinated gum and mints
- Herbal energy blends
Practical
Reading the label
Look for guarana, guarana extract, guarana seed extract, or the plant name Paullinia cupana in the ingredient list. Because botanical caffeine is often not quantified, a product listing guarana may contain more caffeine than the stated caffeine figure alone suggests. It frequently appears alongside added caffeine, taurine, and other stimulants.
Alternatives
If you want to avoid it
Some people who want to control caffeine choose products that state total caffeine in milligrams, or decaffeinated and caffeine-free versions. Checking for a single, quantified caffeine source makes the dose easier to track.
FAQ
Common questions
How much caffeine is in guarana?
Guarana seeds contain roughly twice the caffeine concentration of coffee beans, but the amount in a finished product depends on how much extract is used. US labels are not required to quantify caffeine from botanical sources, so the exact dose is often unclear.
Does guarana do anything besides deliver caffeine?
Its main active ingredient is caffeine, along with smaller amounts of related compounds like theobromine. Most of its stimulant effect is attributed to the caffeine it contains.
Why is guarana flagged if caffeine is common?
Because it can add caffeine that is not counted on the label, making total intake hard to assess, especially in energy drinks that combine several sources. Logging products with guarana against your sleep and energy is the honest way to see how it affects you.
Citations
Sources
Citation
Primary reference
About this page: the definition, label names, severity, and regulatory chips come from the clearlabel ingredient taxonomy, the same data the scanner uses to score products. Research summaries describe associations reported in published studies, not diagnoses; individual responses vary. Scan any product with clearlabel to see which of its ingredients carry flags.