I am now reconstituting peptides. Which is a clinical way of describing something that felt, until recently, firmly outside my world: taking a small vial of powder, mixing it with bacteriostatic water, Do Peptides Work? From Building Muscle to Injury Recovery The Peptide Craze Ground Truths Peptides are often well tolerated, but they can still cause temporary reactions while the body adapts. Some commonly reported effects include: BPC 157 headaches, nausea, increased appetite TB 500