You can still get B12 from dairy products, fortified cereals, and fortified non-dairy products if you're vegetarian
Consult a licensed clinician for personal medical decisions
However, a small number of people reported inflammation at the injection site when sterile water was used to dilute peptides that were supposed to be injected intramuscularly

The Ang IV analogue peptide 4 and the Nle-Ang IV analogue 5 provide examples comprising two basic amino groups accessible for protonation in the N-terminal of the peptides and flanking hydrophobic 2-isopropyl and n-butyl side chains, respectively (Figure 2) ( 3 (or Val 3 ) and His 4 is the characteristic feature of divalinal-Ang IV 6 and norleual 7 , two pseudopeptides that both for a long time served as important research tools ( Figure 2 In the late 1990s Taisho Pharmaceuticals filed patent applications covering compounds that according to competitive experiments with radiolabeled [ 125 I]Ang IV exhibited high affinity to hippocampus membranes from guinea pig ( 8 with the straight four-carbon chain of the Nle residue at position one, exhibited very high affinity to the binding site (IC50 values 30-fold higher affinity (Ki = 1.7 nM) than Ang IV and improved both selectivity and metabolic stability ( 2 , Pro 5 , and Phe 6 in Ang IV by systematic incorporation of constrained residues

Step 5: Inject the Water into the Peptide Vial Hold the peptide vial at a slight angle or sideways to prevent frothing or bubbling when you inject the water
(accessed September 18, 2025)