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Huperzine A | energy, cognition, stamina – 120x200mcg Tablets


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Huperzine A is an acetylcholinesterase inhibitor which promotes focus and memory. Double Wood’s Huperzine A contains 120 x 200 mcg tablets. Click here to learn more.

120 x 200 mcg Tablets


  • ACETYLCHOLINESTERASE INHIBITOR – Inhibits enzymes that degrade the learning neurotransmitter acetylcholine, causing a relative increase in acetylcholine levels.
  • BOOST COGNITIVE FUNCTION – Improves working memory, motivation, and problem solving ability.
  • INCREASES ENERGY AND STAMINA – Increases mental energy and stamina, allowing for sustained cognitive intense work.
  • MADE IN THE USA – Our Huperzine A is manufactured right here in the US.


Huperzine A is a compound extracted from Huperziceae herbs, and is known as a potent acetylcholinesterase inhibitor. When taken, Huperzine A increases relative levels of acetylcholine by inhibiting enzymes that cause it’s degradation.

Acetylcholine plays an important role in many cognitive processes including memory, intelligence, and mood. Higher acetylcholine levels have been shown to improve cognitive performance.

Recommended Dosage

Huperzine A supplementation tends to be in the range of 50 – 200 mcg daily. Our tablets are 200 mcg each, but can be easily broken into halves or quarters for those wishing to take smaller doses.

Huperzine A has a long half-life (10-14 hours), so cycling this product is often recommended. Usually a Huperzine A cycle lasts between 2-4 weeks, with a break of 1 week between each cycle.

Side Effects

When taken at recommended doses Huperzine A is well tolerated and presents few side effects. Rarely, side effects including nausea, diarrhea, and loss of appetite may occur. Adverse side effects are more likely when exceeding the recommended dosage.

Huperzine A is not recommended for people suffering from heart conditions, consult your physician before taking this product

* These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.


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