Testosterone undecanoate, by Organon. Andriol is presented in little, oval- shaped, red capsules. An oil, which contains the testosterone, is inside of these capsules. Andriol is a unique steroid in that it is not an alpha alkylayted 17 steroid. This all but eliminates its hepatotoxicity. Andriol is actually contained in a natural ester base, one, which is very easy on the body. This product's advantageous properties are similar to other testosterones in that it promotes rapid strength and weight gains.

Testosterone undecanoate, by Asia Pharma. Andriol is a revolutionary steroid because, besides methyltestosterone, it is the only effective oral testosterone compound. Testosterone itself, if taken orally, is ineffective since it is reabsorbed through the portal vein and immediately deactivated by the liver. The substance testosterone undecanoate contained in Andriol is reabsorbed from the intestine through the lymphatic system, thus bypassing the liver and becoming effective. The liver function is not affected by this.