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. 
Crosland explains that while the substances aren't physically addictive, "psychologically, they can be difficult to walk away from". He blames a lazy social attitude for the boom among young men. "Everybody wants a magic pill. People don’t want to work hard, they want to take something that will fulfil their dreams. Steroids will give the results that are wanted if all other fitness considerations are in place, but the problem with this group is that everything else isn’t in place. The onus is on the drug use, not the training or the diet."