what are the uses and benefits of alpha gpc?

Alpha-GPC is a choline supplement that can increase acetylcholine, and may support focus and concentration as well as physical power output. It has also been reported to modestly promote growth-hormone release and increase fat oxidation. 1 2

• Cognitive use and dosing: Around 300–600 mg is commonly used before focused work or exercise; Huberman describes taking it about 10–20 minutes before a demanding task. Studies have also used up to 1,200 mg daily, divided into doses, with reported benefits for age-related cognitive decline. 3 4
• Physical performance: A study reported a 14% increase in power output, suggesting possible usefulness for power-focused activities such as resistance training or sprinting. 5
• Combining with caffeine: Alpha-GPC is sometimes taken with coffee or yerba mate; the proposed combination may support concentration by increasing acetylcholine alongside caffeine’s effects on alertness. 6
• Cautions and frequency: High or chronic use has raised concerns about stroke and cardiovascular risk, potentially associated with increased TMAO; the evidence is described as not conclusive. Huberman describes using it roughly three to four times weekly, and discusses 600 mg garlic as a way that may reduce TMAO. 7 8

The benefits described are potential, and the cardiovascular cautions matter particularly with frequent, long-term use.