For many, particularly those with underlying malabsorption issues like pernicious anaemia, injections are demonstrably more effective and stronger in their ability to deliver B12 directly into the bloodstream, bypassing the digestive systems limitations
It's a small cost for absolute peace of mind
It does this through an enzyme called aromatase, which converts androgens into estrogen

This mechanism amplifies existing HGF signaling rather than bypassing it: HGF Potentiation: Dihexa binds to HGF and stabilizes its active conformation, increasing c-Met receptor activation at physiologically relevant HGF concentrations Synaptogenesis: In vitro studies reported that Dihexa promoted new synapse formation at picomolar concentrations orders of magnitude more potent than BDNF in this specific assay Dendritic Spine Formation: Preclinical data suggested increases in dendritic spine density in hippocampal neurons, a structural correlate of learning and memory Oral Bioavailability: Unlike most peptides, Dihexa's small size and peptidomimetic structure may allow oral absorption and blood-brain barrier penetration Cerebrolysin: Multi-Neurotrophic Factor Cocktail Cerebrolysin is a standardized mixture of low-molecular-weight neuropeptides and free amino acids obtained by enzymatic breakdown of porcine brain tissue
at 4 C and plasma was collected
Different sequences and lengths of amino acids can form different peptides