Comparison
Aniracetam vs Alpha-GPC
Aniracetam
A fat-soluble racetam ~5-10x more potent than piracetam. Anxiolytic and creativity-enhancing.
Alpha-GPC
The most bioavailable common choline source. About 40% of an oral dose reaches the brain within an hour, where it serves as substrate for acetylcholine synthesis and as a phospholipid membrane component. The de facto pairing for every racetam stack.
| Field | Aniracetam | Alpha-GPC |
|---|---|---|
| Category | racetam | cholinergic |
| Dose range | 750–1500mg | 300–600mg |
| Half-life | 2h | 6h |
| Onset | 30min | 30min |
| Evidence | EVIDENCEB | EVIDENCEA |
| Safety | ●●●●○ | ●●●●● |
| Legal (US) | USUnscheduled | USOTC |
| PubMed refs | 280 | 320 |
The comparison in plain English
Auto-generated from dataAniracetam and Alpha-GPC are both in the racetam (racetam) and cholinergic respectively. Aniracetam A fat-soluble racetam ~5-10x more potent than piracetam. Alpha-GPC The most bioavailable common choline source.
Bottom line
Aniracetam (evidence B, safety 4/5) has a stronger evidence base than Alpha-GPC (evidence A, safety 5/5). Alpha-GPC has the slightly cleaner safety profile. For users new to either, the higher-evidence option is the safer first try.
Choose Aniracetam if
Aniracetam is the better fit when your goal aligns with its mechanism (Positive allosteric modulator of AMPA receptors, slowing receptor desensitisation and prolonging excitatory signalling) and the dose range (750–1500mg) suits your protocol. Half-life is 2h.
Choose Alpha-GPC if
Alpha-GPC is the better fit when your goal aligns with its mechanism (Rapidly absorbed and cleaved into choline and glycerophosphate) and the dose range (300–600mg) suits your protocol. Half-life is 6h.