Testosteron

Here is a 3D model of Testosterone, a steroid hormone from the androgen group. In 3D, 3D Testosterone is the principal 3D male sex hormone and the "original" anabolic steroid. Effects of 3D testosterone in 3D humans and other 3D vertebrates occur by way of two main mechanisms: by activation of the 3D androgen receptor, and by conversion to 3D estradiol and activation of certain 3D estrogen receptors. In 3D the original and primary therapeutic use of 3D testosterone is for replacement in 3D males who lack it.