Supplement · Brain health technique
Huperzine A
Evidence grade: Experimental
A naturally derived compound from the Chinese club moss Huperzia serrata. It functions as a reversible acetylcholinesterase inhibitor, increasing levels of the neurotransmitter acetylcholine.
- Practice
- Supplement
- Principle
- Nourishment
- Tactic
- Neurochemical & Synaptic Support
- Evidence grade
- Experimental
- Strength of evidence
- Low
How to practice Huperzine A
Typical dosage is 50–200 mcg once daily, ideally cycled (e.g., 3–4 weeks on, 1–2 weeks off). Take in the morning to avoid insomnia. Avoid combining with prescription acetylcholinesterase inhibitors or excessive caffeine. Use short-term for memory support rather than chronic use.
The evidence behind Huperzine A
Huperzine A boosts acetylcholine, enhancing learning and memory in the short term. Multiple small RCTs in Alzheimer’s and mild cognitive impairment populations show modest improvements in cognition, though long-term safety data are limited. It’s more potent than many nootropics and can cause vivid dreams or nausea if overdosed.
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