- Masking agent
In sports a masking agent is used to hide or prevent detection of a banned substance or illegal drug like anabolic steroids or stimulants. Diuretics are the simplest form of masking agent and work by enhancing water loss via urine excretion and thus diluting the urine, which results in lower levels of the banned substance being excreted from the body making it more difficult for laboratories to detect. 
- "Masking agent (chemistry) - Britannica Online Encyclopedia". http://www.britannica.com/eb/topic-367978/masking-agent. Retrieved 2007-11-09.
- ^ http://www.nsca-lift.org/education/npedp/maskagents.shtml Masking Agents FAQ, National Strength and Conditioning Assoc.
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