The overall rating for huperzine a is 2.7 out of 3 meaning there is evidence that this supplement lives up to its expectations. Using this supplement should lead to positive results.

Table of Contents

  1. Simple Report
  2. Detailed Report
  3. Overall Effectiveness Rating
  4. Research Rating
  5. Products Containing Huperzine A
  6. Claim Ratings
  7. Dosing
  8. References

Huperzine A Simple Report

  • Supplement: Huperzine A
  • Supplement Category: plant and food extracts
  • Number of Products Containing Huperzine A: 206
  • Effectiveness Rating: 2.7 out of 3
  • Research Rating: 30 (above 80 indicates sufficient research)
  • Number of Studies: 2
  • Number of Claims: 2
  • Effective Dosage Range: 100 - 200 micrograms per day

Huperzine A Detailed Report

Overall Effectiveness Rating

The overall effectiveness rating for huperzine a is 2.7 out of 3. This rating means the evidence is clear on the supplement's ability to deliver positive results. Using this supplement will lead to positive results. Note, this effectiveness rating is for huperzine a as a whole; there are also individual ratings for the claims below.

Read more: What is the effectiveness rating?

Research Rating for Huperzine A

There are 2 studies in the database on huperzine a; the research rating is 30. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating. Note, this research rating is for huperzine a as a whole; there are also individual ratings for the claims below.

Read more: What is the research rating?

Products Containing Huperzine A

Products Names Amount of Huperzine A
Pre-HD Elite 2.5mg
Defiant 300mcg
Goku Gains Amount not listed.
Relentless V2 200mcg
Koala Freak 2.0 30mcg
Full list of all 206 products containing Huperzine A.

Claim Ratings

The overall ratings above are an average of the individual claim ratings below. Individual claims may have higher or lower ratings compared to the supplement's overall rating. For example, some supplements may have excellent backing for one claim, but be completely useless for another. Click on a claim below for more information.

Mental Health Claims Effectiveness Rating Research Rating
improve cognitive ability
improve memory


The Supplement Database includes 2 studies on huperzine a dosing. These studies indicate an effective dose ranges from 100 to 200 micrograms per day, the average dose being 130 micrograms per day. For a more detailed dosing analysis visit: Supplement Dosing for Huperzine A.


Title of Study
Efficacy of tablet huperzine-A on memory, cognition, and behavior in Alzheimer's disease
Huperzine-A capsules enhance memory and learning performance in 34 pairs of matched adolescent students