20-Hydroxyecdysone can be a naturally happening ecdysteroid hormone which controls the ecdysis (moulting) and metamorphosis of arthropods. It can be therefore The most popular moulting hormones in insects, crabs, etc. It's also a phytoecdysteroid produced by a variety of vegetation, which include Cyanotis vaga, Ajuga turkestanica and Rhaponticum ca