Comparison
Alpha-GPC vs Lion's Mane
Side-by-side of Alpha-GPC and Lion's Mane. Every row below is pulled from the compound schema and will update as our data grows. For deeper reads, follow through to each compound page.
Alpha-GPC
Alpha GPC supplement profile: 300 to 600 mg dosage, acetylcholine synthesis, attention and reaction-time evidence, side effects, and choline donor comparisons.
Lion's Mane
Lion's mane mushroom (Hericium erinaceus) supplement profile: hericenones and erinacines stimulate NGF in vitro. Human cognition trials are small.
Effects at a glance
Alpha-GPC
- •Choline donor supplement, roughly 40% choline by weight; crosses blood-brain barrier efficiently
- •Replicated small gains in attention and reaction time at 300 to 600 mg in healthy adults
- •Standard prescription cognitive medication in much of Europe (Gliatilin) at 1,200 mg/day for vascular cognitive impairment
- •ASCOMALVA trial (n=210) showed cognitive preservation when added to donepezil over 24 months
- •Increases acute power output (~14%, single trial) and transient growth hormone secretion at 600 mg
- •TMAO production raises a contested cardiovascular concern at chronic high doses
Lion's Mane
- •Edible medicinal mushroom containing NGF-stimulating hericenones and erinacines
- •Mori 2009 trial (n=30) in mild cognitive impairment showed cognitive improvement at 3 g/day for 16 weeks, reversing 4 weeks after discontinuation
- •Saitsu 2019 (n=31) in older adults reported MoCA improvements at 3.2 g/day over 12 weeks
- •Multiple small mood trials suggest reduced anxiety and depression scores at 1 to 4 g/day extract
- •Mechanistic case rests on NGF stimulation and remyelination support; in vivo human NGF measurement is absent
- •Product quality varies substantially; mycelium-on-grain products can be over 50% grain by weight
Side-by-side
| Attribute | Alpha-GPC | Lion's Mane |
|---|---|---|
| Category | supplement | natural |
| Also known as | L-Alpha glycerylphosphorylcholine, choline alfoscerate, GPC, alpha-glyceryl phosphorylcholine | Hericium erinaceus, Yamabushitake, Bearded Tooth, Hou Tou Gu |
| Half-life (hr) ↗ | 4 | 6 |
| Typical dose (mg) ↗ | 600 | 1000 |
| Dosing frequency | 1 to 3 times daily | 1 to 2 times daily |
| Routes | oral | oral |
| Onset (hr) | 1 | 168 |
| Peak (hr) | 2 | 1344 |
| Molecular weight | 257.22 | - |
| Molecular formula | C8H20NO6P | mixed extract |
| Mechanism | Hydrolyzed to free choline and glycerophosphate after absorption; choline supports acetylcholine and phosphatidylcholine synthesis in CNS. | Hericenones and erinacines stimulate NGF mRNA expression and NGF protein release in cultured neurons; secondary anti-inflammatory and remyelination-supportive activity in preclinical models. |
| Legal status | Dietary supplement (US); prescription medication in much of Europe | Dietary supplement and food worldwide; unscheduled and unrestricted |
| WADA status | allowed | allowed |
| DEA / Rx | OTC supplement | OTC supplement and food |
| Pregnancy | Insufficient data; choline generally recommended in pregnancy | Insufficient data for routine supplementation; consumed historically as food without documented harm |
| CAS | 28319-77-9 | |
| PubChem CID | 71920 | |
| Wikidata | Q411478 | Q146050 |
Safety profile
Alpha-GPC
Common side effects
- mild GI upset
- headache
- dizziness
- occasional insomnia with evening dosing
Contraindications
- established cardiovascular disease (TMAO concern)
- concurrent strong anticholinergic therapy
Interactions
- anticholinergic medications: partial mutual antagonism(minor)
- cholinesterase inhibitors (donepezil): additive cholinergic effect, basis for ASCOMALVA protocol(minor)
- scopolamine: partial counteraction of anticholinergic effect(minor)
Lion's Mane
Common side effects
- mild GI upset
- occasional skin rash
- contact dermatitis (rare)
Contraindications
- mushroom allergy
Interactions
- anticoagulants: theoretical antiplatelet effect, no documented clinical events(minor)
Which Should You Take?
Alpha-GPC and Lion's Mane score evenly on the criteria we weight (goal breadth, legal accessibility, evidence depth). The conditionals below should drive the decision more than any aggregate score.
- → If your priority is athletic performance, pick Alpha-GPC.
- → If your priority is choline supply, pick Alpha-GPC.
- → If your priority is nerve health, pick Lion's Mane.
- → If your priority is mood, pick Lion's Mane.
Default choice: either is defensible. Alpha-GPC edges out on goal breadth + legal accessibility; Lion's Mane is the right call if your priority sits in the goals listed above.
This verdict is generated from each compound's schema (goals, legal status, evidence outcomes, dosing route). It updates automatically as our compound data evolves; the deeper read sits on each individual compound page.
Common questions
What is the difference between Alpha-GPC and Lion's Mane?
Alpha-GPC and Lion's Mane differ in category (supplement vs natural), mechanism, and typical dosing. See the side-by-side table for full details.
Which has a longer half-life, Alpha-GPC or Lion's Mane?
Alpha-GPC half-life is 4 hours; Lion's Mane half-life is 6 hours.
Can you stack Alpha-GPC with Lion's Mane?
Stack compatibility depends on mechanism overlap, legal status, and individual response. Check each compound page for specific interactions and contraindications before combining.
Go deeper