It may also enhance the activity of certain immune cells, which may ward off viruses and chronic disease such as cancer, according to a 2020 review in the medical journal, Nature (2)
Too acidic and the copper dissociates
Risks and Side Effects of B12 Injections Whilst B12 injections are generally considered safe due to the vitamin's water-soluble nature (excess is excreted renally), they are not without potential adverse effects
Feeling tired, following a vegan or vegetarian diet, or wanting to improve general wellbeing does not by itself show that an injection is needed
Adding a peptide with potential hemostatic effects requires more frequent INR monitoring, particularly in patients on warfarin or with baseline coagulopathy
J Pharmacol Sci 95:1926 Prkacin I, Separovic J, Aralicia G, Perovic D, Gjurasin M, Lovric-Bencic M, Stancic-Rokotov D, Staresinic M, Anic T, Mikus D et al (2001) Portal hypertension and liver lesions in chronically alcohol drinking rats prevented and reversed by stable gastric pentadecapeptide BPC 157 (PL-10, PLD-116), and propranolol, but not ranitidine