Scientific Studies

  • NIH Study Finds 37% Increase in Testosterone With Tongkat Ali.

    Dr. Shawn Talbott of the University of Massachusetts lead a study in 2013 on the effects of Tongkat Ali on Testosterone (+37%) and cortisol levels caused by stress (-16%)

  • KGK Science Study Finds Tongkat Ali Increases Testosterone By Up to 11.4 ng/dL in placebo study.

    In this article, we shall share scientific evidence from clinical trials and research studies performed on humans in the last 20 years.

  • Tongkat Ali (Eurycoma longifolia): Everything You Need to Know

    Studies suggest that tongkat ali may boost male fertility, relieve stress, and improve body composition, but research in these areas is limited.
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