Longjack is a Southeast Asian root from the *Eurycoma longifolia* tree. People use standardized extracts like LJ100 because they deliver a steady dose of eurycomanone and other active compounds. These extracts tend to absorb better and cause less stomach trouble than raw powder.
Men and women take it to feel more energetic, steady their mood, and bounce back faster after exercise. The research behind these uses is still early. A common pattern is one daily dose with food, which helps cut stomach upset and aids absorption of its fat-soluble parts.
Longjack can shift hormone levels, notably testosterone, and alter blood sugar. Watch out if you take diabetes drugs or blood thinners. Skip it if you are pregnant, nursing, or dealing with any hormone-sensitive condition.