The clinical name for the type of steroid used in intralesional (scar tissue) injections is called triamcinolone. Triamcinolone'a class of corticosteroid'is also contained in many gels and creams prescribed for a variety of skin conditions, steroids4u. In nature, corticosteroids are found as biologically-occurring hormones produced in the adrenal cortex of mammals and other vertebrates. Corticosteroids produced in the adrenal cortex are responsible for numerous physiological functions involved in stress response, immune system processes, inflammation, and much more. To say the least, these vital chemicals are responsible for facilitating a number of biological processes that keep us healthy. SOURCES: Agency for Healthcare Research and Quality: "Rheumatoid Arthritis Medicines: A Guide for Adults, steroids4u.