What is Royal Jelly? Produced by worker bees as a source of energy and nutrition for the queen, royal jelly is a highly nutritious nectar contains proteins, fatty acids, B vitamins, minerals and trace elements such as copper, iron, potassium and sulphur. Due to its comprehensive nutritional profile, royal jelly is popular in many beauty products. Why is Healthspan’s better? Each capsule provides the equivalent of 600mg fresh royal jelly. They standardise their concentrated natural extract to guarantee a minimum of 6% of the active ingredient HDA (10-Hydroxy-2-decenoic acid). Vitamin B2 (known as riboflavin) is also added to support your energy levels, energy-yielding metabolism, and to protect your cells from oxidative stress.* *Riboflavin contributes to the reduction of tiredness and fatigue, normal energy-yielding metabolism, and the protection of cells from oxidative stress.