Signs of contamination or degradation: Cloudiness or turbidity (potential bacterial growth or precipitation) Visible particles or crystals (potential contamination or degradation products) Discolouration or browning (potential oxidative degradation) Visible mould growth (rare, but indicates severe contamination) Unpleasant or unusual odour (potential bacterial contamination) Action: If any of these signs are observed, discard the vial immediately
For this reason, it is often used as a research compound in the study of tendons, ligaments, muscles, mucous membranes, skin tissue, and microcirculation
Seiwerth S, Sikiric P, et al
Methylcobalamin is preferred over cyanocobalamin (the synthetic form) in many clinical settings because it is the metabolically active coenzyme form of B12, meaning the body can utilise it immediately without further conversion
Being unregulated, the peptide vials one buys may be of questionable purity or dosage