In reality, there is no one-size-fits-all answer to this question
Specifically air injection during bacteriostatic water addition
Social Withdrawal and Anhedonia Social withdrawal, modeled by ketamine 8 mg/kg over three days inducing social isolation, was completely antagonized by BPC-157 independently of locomotor effects
Guez etal, 2012 Severe vitamin B12 deficiency in an exclusively breastfed 5-month-old Italian infant born to a mother receiving multivitamin supplementation during pregnancy PMC 22726312 Roed etal, 2008 Severe vitamin B12 deficiency in infants breastfed by vegans (Ugesr Laeger, 171: 3099-101 Shah T, Mishra S, More A, Otiv S, Apte K, Joshi K
Synonyms: Bacteriostatic Water for Injection (BWFI)