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Intramuscular means exactly that: the injections is IN the muscle

Wu et al., 1998, 1999)

Complementary to the above, it has been thought for a long time that only supraphysiological concentrations of IGF-1 are able to activate the IR, as will be further discussed in this manuscript

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Also, injectable glutathione is not approved for skin lightening in many countries

Its scientific relevance lies primarily in: precise GH stimulation through GHS-R agonism with minimal influence on cortisol and prolactin levels, its mechanistic value for studying the growth hormone axis and metabolic regulation , preclinical effects on IGF-1 signaling, bone homeostasis, and gastrointestinal function , which provide useful models for further research