Bioconcepts royal jelly 500mg capsules royal jelly is a milky secretion produced by honey bees that is reserved exclusively for queen bee this jelly is said to help increase strength longevity and promote active ovaries in queen bees however it is harvested for use as a human dietary supplement and is available here in its highest quality in capsule form what does royal jelly contain although composition varies depending on geographical location and climate royal jelly is generally mad