Laxogenin or 5a-Hydroxy Laxogenin is a plant based steroid which is taken by those looking to increase anabolic muscle growth. Laxogenin supplement and supplements containing laxogenin are muscle building supplements that react in the body in a similar way to the chemical Oxamdrolone, also known as Anavar to increase free levels of testosterone and increase nitrogen retention, ultimately resulting in an increase in muscle mass.