Tongkat Ali

In 64 moderately stressed healthy adults supplemented with 200 mg/day for 4 weeks, Tongkat Ali reduced cortisol by 16%, elevated testosterone by 37%, and improved tension, anger, and confusion scores.

Review of multiple trials found Tongkat Ali supplementation significantly increased free and total testosterone in healthy men across several studies, with consistent effects on hormone levels.

In 27 young resistance-trained healthy men using a multi-ingredient supplement containing Tongkat Ali during 4 weeks of high-intensity training, participants showed greater increases in bench press and total weight lifted compared to placebo, with no changes in blood tests.

This phase II randomized, double-blind, placebo-controlled trial evaluates 600-900 mg/day Tongkat Ali combined with Maca in men aged 35-65 with mild to moderate erectile dysfunction, assessing improvements in sexual performance, testosterone levels, and quality of life over 12 weeks.