Espadiet Royal Jelly Vital Formula 20 Vials is a food supplement containing royal jelly, a substance produced by worker bees. Royal jelly is known for its nutritional and energizing properties, so this product is used to combat fatigue and exhaustion. Its special formula provides vitamins, minerals and essential amino acids that help strengthen the immune system and improve physical and mental performance. It is important to follow the instructions for use and consult a healthcare professional before starting to use this product