MT1 is used in laboratory settings to investigate how selective MC1R agonism may modulate this ratio, with attention to the downstream oxidative stress implications of pheomelanin predominance
Just as the normal (conventional) ranges for TSH may not be optimal, the normal lab values for B12 and ferritin may not be in what functional practitioners (including myself) would consider an ideal range either
PubMed Central , Regulatory Toxicology and Pharmacology: RTP , vol
WADA (World Anti-Doping Agency): IGF-1 and all analogs, including LR3, are prohibited substances under the S2 category (Peptide Hormones, Growth Factors, and Related Substances)
doi: 10.1111/j.1365-2796.2009.02079.x 303 JammesYSteinbergJGDelliauxS
But any number of far simpler health measures regular exercise, eating lots of greens, consistent sleep have copious evidence to back up their efficacy, yet far too few people bother with them