Taking a caffeine supplement (200 - 400 milligrams) before your workout will give you a powerful strength boost. (fitnessandpower.com)
The dosage must be well beyond what is used for hormone replacement therapy to achieve the muscle mass and strength boosting effects of testosterone. (hghinjections.us)
On the flip side, though, you get a major strength boost and get the power to summon demons. (gamingunion.net)