The time it takes for testosterone gel to start working can vary depending on individual factors like metabolism, skin absorption, and the severity of testosterone deficiency. Typically, some effects can be noticed within a few weeks of consistent use. However, more significant changes, such as improved muscle mass, bone density, mood, libido, and energy levels, may take several months to become evident. It’s important to note that results can vary widely from person to person. For the most accurate assessment of how testosterone gel is affecting you, regular follow-up appointments with your healthcare provider are recommended. They can monitor your testosterone levels and make adjustments to your treatment plan as needed.