ghk cu peptide dose 50mg dosage of ghk cu Peptide Dosage Chart: 20+ Peptides GHK-CU Peptide Injection Dosage: Complete
Description
So, I cannot confirm nor deny that the B12 was the bleeding cause

Systematic review and meta-analysis: Dose-response curve of SSRIs and SNRIs in anxiety disorders

C.GalanopoulouO.TalianidisI

People with Digestive Issues : Those with conditions that affect nutrient absorption, such as Crohns disease, celiac disease, or irritable bowel syndrome (IBS), may find vitamin injections more effective for receiving essential nutrients
2.2 mg dose from a 20 mg vial: Target 25 units (0.25 mL)

A deficiency in vitamin B12 has been linked to depression and other mood disorders
