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is sublingual b12 as good as injections Vitamin vs. Oral Supplements: Which Do You Actually Need? Do You Need a Prescription
Description
Taking high-dose oral B12 supplements can also greatly increase blood levels here, the same period of 7-10 days should be observed before testing

This makes NAD a great choice for those whose work requires a lot of mental energy

Qualified Supervision: All GHK-Cu injections should be performed or supervised by a licensed medical professional (e.g., doctor, nurse practitioner)

Iyamu et al

Patients should also report recreational nitrous oxide use, as this can inactivate vitamin B12 and cause neurological symptoms
