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Subcutaneous injection bypasses all of these barriers except plasma half-life, which for unmodified small peptides is generally very short (minutes to low hours, based on class-level pharmacokinetic data for similar unmodified peptides)
Current Infections: If you have an active infection, it is advisable to delay B12 shots until the infection has resolved
MIC/B12 injections assist your body in producing amino acids and proteins that aid in weight loss, sugar metabolism, and insulin sensitivity
Adding a precise, uneven amount of water (like 2.4 mL) ensures your daily injection always lands on a clean 10- or 50-unit mark, minimizing dosing errors
Some compounding pharmacies adjust these concentrations based on prescriber preferences, but the 5/5/1 ratio represents the most common configuration available through major compounding pharmacies
Which Option Would I Use: NAD Nasal Spray or Injection
