In the body, IGF-1 can activate growth a multitude of bodily tissues, including the nerves, bone, kidneys, and liver
BPC-157 has the most extensive preclinical evidence for peripheral nerve regeneration after traumatic injury
Modified Irvine, Beatties and Bresnahan forelimb scale (IBB scale, scored 02, 03, 01) (63, 64) for assessment of forelimb function impairment in rats that received cuprizone diet, and then cuprizone intragastrical applications, and thereby, cuprizone toxicity manifestations
This is not optional it is the difference between guessing and knowing
For the standalone overview, see The Wolverine Stack Explained
All efficacy claims derive from animal studies