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. 
I’m so confused, so much information and so much conflicting each other, I spend so much time researching to find what’s the best way… and here I am. Spent an hour and a half going through everything from the glad diet…to how to have ripped abs to how to make proats. Need advice. I’m 31 and used to be in decent shape in my early 20’s. two kids later and not so much, about 2-3 times a year a get the urge to start working out, insanity…weights…training for triathlons and every time 2 months into it I don’t like how I look yet and give up. I need something that will help me LOSE fat AND gain muscle, losing fat requires decrease in calories and gaining muscle requires increase of calories….should I just focus on losing fat first and only than work on building muscle, currently I’m 5’9 175ish about 18-20% body fat….down from 194 and 22-24% so I feel like I’m doing something right.