Alpha-GPC vs DHEA
Nootropic vs Hormone · evidence-backed comparison
- • Alpha-GPC has the broader effect profile across the 9 effect categories.
- • DHEA is cheaper per serving ($0.25 vs $0.70).
- • Alpha-GPC has a slightly cleaner safety profile.
- • Alpha-GPC has higher bioavailability (better absorption).
Side-by-side traits
| Trait | Alpha-GPC | DHEA |
|---|---|---|
Category | Nootropic | Hormone |
Active compound | L-alpha-glycerylphosphorylcholine | Dehydroepiandrosterone |
Form available | Capsule, Powder | Capsule, Tablet |
Source | synthetic | synthetic |
Typical dose | 300–600 mg | 10–50 mg daily |
Dose range | 300–600 mg | 10–50 mg |
Loading protocol | — | — |
Best taken with | with food | morning |
Best time of day | morning | morning |
Bioavailability How efficiently the body absorbs and utilizes the compound. | Very High (5/5) | High (4/5) |
Onset time | Acute: 60–90 min | Cumulative: 2–8 weeks |
Half-life | ~6 hours | ~10 hours |
Evidence level Quality and quantity of human research. | Moderate (some RCTs) | Moderate (some RCTs) |
Overall effect Subjective effect magnitude. | Moderate (3/5) | Moderate (3/5) |
Muscle / strength | Moderate (3/5) | Low (2/5) |
Physical energy | Moderate (3/5) | Moderate (3/5) |
Focus / cognition | Very High (5/5) | Low (2/5) |
Mood / stress | Moderate (3/5) | Moderate (3/5) |
Sleep quality | Low (2/5) | Very Low (1/5) |
Immunity | Very Low (1/5) | Low (2/5) |
Recovery Post-exercise recovery support. | Low (2/5) | Low (2/5) |
Longevity / healthspan | Moderate (3/5) | Moderate (3/5) |
Safety rating 5 = exceptionally well-tolerated; 1 = significant risk profile. | High (4/5) | Low (2/5) |
Price per serving Approximate USD per typical daily dose. | $0.70 | $0.25 |
Vegan friendly | Yes | Yes |
Gluten free | Yes | Yes |
3rd-party tested | Yes | Yes |
About Alpha-GPC
The most bioavailable choline source for the brain. Boosts acetylcholine for focus, learning, and athletic power output.
About DHEA
Adrenal steroid hormone that converts to androgens and estrogens. Useful for adrenal insufficiency and aging women, but a banned substance for athletes.
Vetted brands, third-party testing, ships worldwide.
Vetted brands, third-party testing, ships worldwide.
Alpha-GPC safety
Common side effects:
- • Headache
- • Heartburn
- • Insomnia (high doses)
Avoid if:
- • Stroke history (consult MD)
Drug interactions:
- • Anticholinergics
DHEA safety
Common side effects:
- • Acne
- • Oily skin
- • Hair loss
- • Mood changes
- • Hormonal effects
Avoid if:
- • Hormone-sensitive cancers
- • PCOS
- • Pregnancy
- • Banned in NCAA / WADA sports
Drug interactions:
- • Hormones
- • Anticoagulants
- • Antidepressants
Common uses
- • Focus
- • Memory
- • Power output
- • Cognitive aging
Stacks well with: Caffeine, Lion's Mane Mushroom
Common uses
- • Adrenal insufficiency
- • Hormone support in aging
- • Mood / energy in low-DHEA
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Medical disclaimer
SupplementDuel is for educational purposes only and is not medical advice. Consult a physician before starting, stopping, or combining supplements — especially if you are pregnant, breastfeeding, take prescription medication, or have a chronic condition.