ellie bpc 157 EllieMD | Longevity PEPTIDES POPULARITY: An FDA advisory

This review included both RCTs and observational studies (N-RCTs, cohort, and case-control) to assess the efficacy of various Vitamin B12 administration routes

Hydroxocobalamin has certain advantages, especially with its detoxification effect and excellent storability, which helps to ensure a long-lasting B12 supply

Its also one of the most misunderstood

Like IGF-1, it has been shown to promote muscle growth and cell differentiation

Animal data show subcutaneous and intragastric routes produce measurable effects, but nasal-route bioavailability for a 15-amino-acid peptide has not been quantified in peer-reviewed literature