Alpha-GPC and L-Tyrosine
Often combined in focus formulas, pairing a choline source with a dopamine precursor for attention under demand.
Alpha-GPC
A highly bioavailable choline source for memory and power output.
L-Tyrosine
The dopamine precursor that sharpens focus under stress.
Great to combine
These two are frequently stacked together; they complement each other and are commonly taken at the same time.
How to take them
Alpha-GPC
- Dose
- 300–600 mg per day (often 300 mg pre-workout)
- Timing
- With or without food; pre-workout for power output or in the morning for focus
L-Tyrosine
- Dose
- 500–2,000 mg taken 30–60 minutes before a stressful task or period of sleep deprivation
- Timing
- On an empty stomach, 30–60 min before the stressful event
Frequently asked
Can you take Alpha-GPC and L-Tyrosine together?
Yes, they are commonly taken together. Often combined in focus formulas, pairing a choline source with a dopamine precursor for attention under demand.
What's the best time to take Alpha-GPC and L-Tyrosine?
Around the same time works well. Alpha-GPC: With or without food; pre-workout for power output or in the morning for focus. L-Tyrosine: On an empty stomach, 30–60 min before the stressful event.
How do Alpha-GPC and L-Tyrosine interact?
Synergy: Work better together than alone. Often combined in focus formulas, pairing a choline source with a dopamine precursor for attention under demand.
Related pairings
Alpha-GPC + Caffeine
Commonly paired pre-workout and in focus stacks; alpha-GPC supports power output and acetylcholine while caffeine adds stimulation.
Alpha-GPC + Citicoline
Both are bioavailable choline sources that raise acetylcholine; alpha-GPC delivers more choline by weight while citicoline also provides cytidine for membrane synthesis.
Alpha-GPC + Huperzine A
A classic cholinergic stack: alpha-GPC supplies the choline to build acetylcholine while huperzine A slows its breakdown.
Alpha-GPC + Phosphatidylserine (PS)
Both supply phospholipid and choline building blocks that support membranes and cholinergic signaling for cognition.