Every ingredient has been tried and tested under an array of real world physical stresses and environments from the weight room to the athletic field. Kris Gethin has tested and analyzed every supplement under multiple conditions, strategic dosages, and many combinations. He put his body through the extreme edges of endurance while preparing for a triathlon over a four-month period. Once completed, he again broke physical boundaries by pushing his body through the intense environment of a 12-Week Muscle-Building Plan that was documented daily by . The results of both were astounding.
Transdermal patches (adhesive patches placed on the skin) may also be used to deliver a steady dose through the skin and into the bloodstream. Testosterone-containing creams and gels that are applied daily to the skin are also available, but absorption is inefficient (roughly 10%, varying between individuals) and these treatments tend to be more expensive. Individuals who are especially physically active and/or bathe often may not be good candidates, since the medication can be washed off and may take up to six hours to be fully absorbed. There is also the risk that an intimate partner or child may come in contact with the application site and inadvertently dose himself or herself; children and women are highly sensitive to testosterone and can suffer unintended masculinization and health effects, even from small doses. Injection is the most common method used by individuals administering AAS for non-medical purposes.