Among many other benefits of royal jelly are that it balances appetite and increases vigor and good physical feel. It also provides occular nutrition and rejuvenates the aged. My own experiences include sleeping better and feeling calmer. I think it is the nutrition that the body receives that brings about that feeling.It also restores sexual energy and balances glandular secretions. There is a lot of current research about royal jelly but until it all is made public i prefer my own body feeling as an indicator. I personally felt so much better in so many ways including a natural beautifier to my skin.