maximum dose of vitamin b12 injection B12: Symptoms, Dosage & Toxicity Risks Vitamin B12 Injections: Ideal Dosage
Description
For individuals with absorption disorders or pernicious anemia, this direct delivery method is often the preferred route

It is also suitable for people who have had gastrointestinal surgeries (like gastric bypass) or have digestive disorders such as Crohns disease, which can impair nutrient absorption

Applied twice daily using 0.5ml per application, this provides 20mg per day of topical peptide (though actual absorption is much lower due to skin penetration limits)

In Human Drug Compounding: Laws and Policies

Another thing to remember about vitamin B12 is that it is a water-soluble vitamin
