rash from b12 injection Strange Rash/ Low : r/B12_Deficiency Allergic reaction following drug injection.

The reason is that injections are more easily absorbed by the body, particularly if you have underlying conditions that may lead to an inability to efficiently absorb the vitamin, such as Irritable Bowel Syndrome or Celiac Disease

The powder may have degraded before reconstitution due to improper storage, high temperature exposure, or moisture infiltration into the sealed vial

Unlike full growth hormone, it specifically targets fat cells without affecting blood sugar or promoting unwanted tissue growth

Animal-to-human amount translation is not straightforward and requires allometric scaling, and human pharmacokinetics, safety, and efficacy remain uncharacterized in published literature