Alpha-GPC explained: what it is and where it comes from
Alpha-GPC is made from soy lecithin enriched with PC. EFSA (the European Food Safety Authority) says GPC stands for glycerylphosphorylcholine and describes forms that dissolve readily in water. One product we reviewed lists Alpha-GPC, and none prints its individual amount.
- In the products we reviewed
- 1, its label does not print the amount
What alpha-GPC is
How much alpha-GPC each product gives
Amount not printed: the dashed line shows the most it can be, the whole blend
The product we reviewed that lists alpha-GPC
| Product | Form and serving | Alpha-GPC per serving | Our score | Price a bottle | Buy |
|---|---|---|---|---|---|
 NeuroQuiet#3 in hearing support | Oral spray6 sprays | Not printedIn the 2000 ng Growth Factor Complex | 9.7 | $49 | Check price |
Questions people ask
What is Alpha-GPC?
Alpha-GPC is made from soy lecithin enriched with PC. EFSA (the European Food Safety Authority) says GPC stands for glycerylphosphorylcholine.
Where does Alpha-GPC come from?
Alpha-GPC is made from soy lecithin enriched with PC.
What is Alpha-GPC powder?
Alpha-GPC powder is a white to off-white crystalline form, according to EFSA (the European Food Safety Authority). EFSA says another form is a thick, clear liquid or semisolid material, and both forms dissolve readily in water.
Which supplements we reviewed contain Alpha-GPC?
NeuroQuiet is the only product we reviewed that lists Alpha-GPC. Its individual amount is not printed: it appears inside the 2000 ng Growth Factor Complex. NeuroQuiet is an oral spray with a serving of 6 sprays.
Sources
The products, amounts and prices come from each product's label and checkout, as its review shows them. AI drafts our pages from listed sources, figures are checked against them, and we have not tried the products.
- 1EFSA Journal (2026), scientific opinion 10008efsa.onlinelibrary.wiley.com/doichecked