But a monthly 4000 mcg dose would be 4 mL, with the same concentration
If you have any sort of GI issue (GERD, reflux, SIBO/SIFO, yeast problems, chronic constipation, etc.) you will have problems taking oral forms of vitamin B12

Other benefits of MOTS-c MOTS-cs diverse therapeutic effects may help users realize numerous downstream health effects: Diabetes: Inefficient glucose uptake is a characteristic of type 2 diabetes, and mitochondrial dysfunction may result in two risk factors for the disease insulin resistance and impaired insulin secretion.32 33 MOTS-cs actions on these risk factors may help nip them in the bud.34 Cardiovascular health: Diabetes is a cardiovascular risk factor, so cutting it from the picture can spell significant improvements in heart health.35 A high body-fat percentage is another such risk factor, so if MOTS-c can prevent obesity, it can halt the onset of a health condition characteristic of more than 80% of people with coronary heart disease.36 37 Longevity: Given the link between inflammation, age, and high-risk age-related diseases (e.g., atherosclerosis, cardiovascular disease), MOTS-c may increase lifespan as a continual downstream effect.38 Cognitive function: A 2022 review published in Progress in Neurobiology noted that metabolic modulators (which MOTS-c is) and exercise (which MOTS-c simulates) can be used in neuroprotective strategies.39 Or at least that has been the case in preclinical studies

If youre unable to pull the syringe plunger back (the syringe does not fill with blood) then proceed with pushing the plunger down slowly over 5 to 10 seconds