B12 shots and sublingual B12 are superior to oral tablets for absorption, especially if you have GI issues
The melanocortin peptide KPV inhibits inflammatory signalling pathways independently of classical melanocortin receptors
Wear loose clothing for easy access to the injection site
Here are some red flags that you should look out for: No prescription required : Licensed and reputable pharmacies always require a prescription for the drugs
Mechanism And Absorption Injections (IM or subcutaneous) Usually given as cyanocobalamin or hydroxocobalamin Absorbed directly from muscle or subcutaneous tissue into circulation Typically administered in a clinic, or self-injected after training B12 nasal spray Absorbed through the nasal mucosa directly into the bloodstream Avoids needles, first-pass metabolism, and GI issues Can be administered at home in seconds A quick side-by-side view can help: Clinical work with prescription cyanocobalamin nasal spray (e.g., Nascobal) shows that nasal B12 reaches effective blood levels and maintains them over time when used on a consistent schedule, with research from the Comparison of the Efficacy demonstrating superior absorption through nasal delivery compared to oral administration
The more recent STEP UP trial tested a higher dose of 7.2 mg and showed average weight loss of 20.7% at 72 weeks