Tongkat Ali is a herbal tree that is grown in Malaysia, Indonesia and Thailand. This herb is also known as Eurycoma longifolia and often called the “Asian Viagra”. It has been consumed for many years in Malaysia as a natural aphrodisiac to enhance sexual performance. Several clinical and lab tests have been conducted to ascertain the effect of this herb on testosterone levels, sperm quality, sex drive and correcting erectile dysfunction. Here is a brief discussion of the main benefits of using tongkat ali to improve male sexual health.

  1. Enhanced Libido

An increase in libido in the range of 8.4 to 10.8 percent was observed in a study where the participants consumed this herbal supplement daily. A double-blind placebo controlled study was conducted to observe the effect of Eurycoma on man’s sexual health. This study was conducted for 6 months and 109 males between the ages of 30 and 64 participated in the study. After 12 weeks of taking 300 mg of the extract of Eurycoma, the average libido moved up by up to 8.7 percent [2].

  1. Higher Testosterone Levels

Regular use of tongkat ali increases the testosterone levels in men. As men get older, they experience a significant drop in testosterone and some other hormones. This condition is called andropause. Andropause is marked by a decline in sexual response and lack of energy. Eurycoma longifolia has been used as a potent aphrodisiac and a remedy for andropause. The root of this herb contains substances that can stimulate the libido, promote semen quality, and boost sex drive by increasing testosterone.

In June 2012, a study was conducted on 65 men in Malaysia. Only 35 percent of them showed a normal testosterone level. In this study, 76 out of 320 patients who suffered from late-onset hypogonadism received 200 mg of standardized extract for 30 days. Before the treatment, only 10.5% did not show any complaint on the ageing males syndrome (AMS) scale. But after a month of taking tongkat ali, over 90 percent of the men had normal testosterone levels and 71.7% did not show a complaint on the AMS scale.

  1. Improved Sperm Quality and Male Fertility

In addition to improving libido, tongkat ali also improves sperm quality and fertility. The hormonal boost provided by supplementing with this herb brings about better quality of sperm in terms of increase in volume, motility and concentration. A study published in the Asian Andrology Journal in 2010, investigated the effect of this supplement on sperm quality with 350 male participants. In this study, investigations were conducted to test discover the effect of this supplement on male fertility with respect to sperm motility, percentage of sperm morphology, sperm volume and concentration.

A total of 350 males took 200 mg of this extract every day. The follow-up analysis on the semen was conducted every 3 months for a total of 9 months. The results revealed that the sperm quality improved significantly. Each patient was required to consume tongkat ali extract daily. After the study, there were significant improvements in the sperm quality of the participants. These changes lasted for several months after the original study. In fact, nearly 15% of them reported new pregnancies.

  1. Improved Sexual Satisfaction and Erection Time

In a new study, published in January 2014, it was shown that combining 200 mg of Eurycoma Longfiolia and 100 mg dose of Polygonum minus produced a significant improvement in sexual performance over the placebo. In the 12-week study, 26 men with ages between 40 and 65 years participated in the study. The men, who took the herbal supplement, said their satisfaction rose from a baseline of 15.77 to 19.85, while those in the placebo group only increased from a baseline of 12.36 to 14.29. The erection time increased by 12 percent in the group that took the tongkat ali; but the placebo group only increased by 5 percent. The study also revealed that the supplement was well tolerated with a dosage of 300 mg every day for 12 weeks.


The evidence provided by the studies reviewed above shows that healthy males, who are experiencing reduced sex drive, can use tongkat ali as a supplement to boost their sexual performance. This herbal supplement is well tolerated in healthy males and it does not have any negative side effects. However, before you take this supplement it is advisable to consult your physician first.