Theacrine is a natural compound related to caffeine. A couple of human studies suggest that theacrine may increase mental clarity, boost energy, and improve mood and motivation. Read on to learn more about this new potential alternative to traditional caffeine.

What Is Theacrine?

Theacrine (1,3,7,9-tetramethyluric acid) is a purine alkaloid found in cupuacu fruit (Theobroma grandiflorum) and the kucha plant (Camellia assamica var. kucha).

The cupuacu plant is related to cocoa and grows in the Amazon.

The kucha plant is related to the tea plant and grows only in the wild woods of Yunnan (China) above an altitude of 1,000 meters. It’s used to make Chinese kucha tea. Kucha also contains caffeine and theobromine, and it seems that the plant produces theacrine from caffeine [1].

The chemical structure of theacrine is similar to caffeine, and molecular studies suggest that it activates similar receptors and signaling pathways [2, 3].

How Does It Work?

Our understanding of how theacrine works comes mainly from animal studies.

Theacrine binds to adenosine receptors (ADORA1, ADORA2A) in mice and rats and appears to have a different effect depending on the dosage:

• A high dosage (48 mg/kg in rats) blocks adenosine receptors. This mechanism counteracts the drowsiness produced by adenosine, just like caffeine [4].
• However, smaller doses (3 mg/kg in mice) show the opposite effect by increasing adenosine levels in the brain (hippocampus) and counteracting the stimulatory property of caffeine [5].

High doses of theacrine also activate dopamine D1 and D2 receptors in rats (DRD1, DRD2). Activation of these receptors is responsible for motivation and wakefulness [4].

In addition, studies in mice also suggest that theacrine may have anti-inflammatory and antioxidant properties:

• It protected against liver damage by reducing the levels of inflammatory cytokines IL-1β, TNF-α, IL-6, and IFN-γ in the liver [6].
• It also increased the antioxidant capacity of the blood and liver of stressed mice. Theacrine increased the production of the antioxidant enzymes superoxide dismutase, catalase, and glutathione peroxidase and reduced the activity of xanthine oxidase (an enzyme that creates reactive oxygen species) [6].

What makes theacrine truly unique is how it may differ from caffeine