Intramuscular injection of testosterone may be safer and more effective than transdermal administration. (2015)
www.sciencedaily.com
From the article:
A new review article by testosterone researchers at the University of Florida compared the modes of delivery and concluded that intramuscular injection of TRT conferred greater health benefits [from the publication: for combating loss of muscle and bone in older men] and lower cardiovascular risks than transdermal administration by skin patch or gel.
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