John Libbey Eurotext

European Journal of Dermatology

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The effect of oral royal jelly administration on skin barrier function: a double-blind randomized placebo-controlled trial Volume 28, issue 4, July-August 2018

Figures

  • Figure 1
Authors
1 Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
2 Translational Research Department for Skin and Brain Diseases, Kyoto University Graduate School of Medicine, Kyoto, Japan

Royal jelly (RJ) is a widely used dietary supplement. RJ is the exclusive food of queen honey bee larvae and is secreted from the hypopharyngeal and mandibular glands of the worker honey bee. This complex substance contains a unique combination of proteins (12-15%), sugars (10-12%), lipids (3-7%), amino acids, vitamins, and minerals. Compared to the short-lived and infertile worker bees, the queen bee, which is exclusively fed RJ, is characterized by an extended lifespan and well-developed gonads. [...]