There is a fair amount of proof that the herb Eurycoma longifolia, also known as longjack and tongkat ali, has aphrodisiac and procreative benefits. However, the evidence for "testosterone boosting" is not strong. Some studies also points to antiestrogen and proerectile effects.

Summary

Long-leaved Eurycoma The herb known as Jack is also referred to by the names Tongkat Ali, Malaysian Ginseng, and Longjack.

There is scant evidence in female rats, but it appears to impact them to a comparable extent as in male rats. The aphrodisiac effects of Eurycoma are extremely reliable and seem to cover a wide variety of animal models. Eurycoma is anecdotally one of the better herbal aphrodisiacs, yet it is challenging to compare their potency to other herbal aphrodisiacs.

In addition to its aphrodisiac properties, Eurycoma can also boost sperm production and may even have proerectile properties directly. Eurycoma contains at least one molecule (9-hydroxycanthin-6-one) that has both pro-erectile and ejaculation-delaying effects (although the ability of this molecule to act via consuming Eurycoma extract is not known).When the active ingredient is injected, Eurycoma has a potency that is comparable to Tamoxifen and has outstanding anti-estrogenic actions in vitro. Promising, but there are presently no trials evaluating oral intake of

Eurycoma Extract or studies on it in humans. The literature on the testosterone side of things seems overly optimistic. While many studies are eager to cite presentations by an M.I. Tambi asserting these testosterone enhancements, there is currently no peer-reviewed data to support the use of Eurycoma as a testosterone booster in otherwise healthy people or rats. All of Dr. Tambi's research that was presented at conferences doesn't seem to be included in Medline.

• Longjack

• Tongkat Ali

• Malaysian Ginseng

• Longjax

• Cay Ba Binh

• Pasak Bumi

• Langir Siam

• Tung Sawa

• Eurycoma Longifolia

The recommended dose of eurycoma longifolia jack is 50–100 mg of a 100:1 extract (the concentration is determined on the eurycomamone content), which is equivalent to 20–30 grams of the plant's dry root in terms of effectiveness for eurycomamone.It is unclear if this is the ideal amount because it is typically taken in 1-2 doses throughout the day. There are many complexed testosterone boosters with this available online.