Ingredients & Effects
Explore this evidence-based guide to GABA, its effects, the blood-brain barrier and gut-brain axis, and how fermented foods such as Guayusa tea may naturally support your GABA levels.
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Guayusa and energy: explore cognition, blood sugar and the evidence around this Amazonian plant.
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Guayusa and the brain: explore caffeine, theobromine and chlorogenic acid, and research related to Alzheimer’s and Parkinson’s. Discover more!
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29 active compounds identified: explore research into Guayusa’s antioxidant and neuroprotective properties. Discover more!
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Compare LIMITLESS Guayusa extract with Red Bull, coffee and other options for focus, energy and performance, including how energy crashes and side effects compare.