No Tolerable Upper Intake Level (UL) has been established for B12, due to its This threshold has not been set for B12 because your body excretes whatever it doesnt use through your urine
Even a recent 2026 review concludes the same thing that GHK-Cu appears safe but the evidence is largely preclinical and comprehensive human RCTs are lacking (Wojcieszuk et al., 2026)
Footsteps to Wellness publishes its specific compound list rather than hiding behind custom protocols language, which makes it easier for patients to confirm whether the clinic actually carries what they need
What's Inside YourProtocol EpitalON Each capsule contains: Active Ingredient: Ala-Glu-Asp-Gly tetrapeptide complex: 3mg per capsule Other Ingredients: Rice flour (bulking agent), Vegetable cellulose capsule, May contain additional excipients for stability Free From: Synthetic fillers, Artificial additives, Preservatives, Gluten, Dairy, Soy YourProtocol EpitalON is manufactured in a cGMP-certified facility in the United States and undergoes third-party testing for purity and potency
The Potential of GHK as a Peptide Involved in Cellular Remodeling and Anti-Oxidative Mechanisms