For most people, we definitely recommend SQ over IM
As an analogy, the peptide removes the roadblocks that slow down traffic
[131] [132] Species from the following genera and the following individual species are known to synthesize B 12 : Propionibacterium shermanii , Pseudomonas denitrificans , Streptomyces griseus , Acetobacterium , Aerobacter , Agrobacterium , Alcaligenes , Azotobacter , Bacillus , Clostridium , Corynebacterium , Flavobacterium , Lactobacillus , Micromonospora , Mycobacterium , Nocardia , Proteus , Rhizobium , Salmonella , Serratia , Streptococcus and Xanthomonas
The compound then received GRAS (Generally Recognized as Safe) designation from the FDA for use as a food ingredient, which is a separate regulatory category from drug approval
These mechanisms are studied exclusively in experimental environments to better understand peptide-mediated signaling behavior at the molecular level
In: Lee GR, et al., eds