Some possible side effects of peptide supplements include: Allergic reactions, such as hives, swelling, or difficulty breathing Heart problems, such as high blood pressure, fast heart rate, and palpitations (fluttering or pounding heartbeat) Stomach problems, such as nausea, vomiting, and diarrhea Cognitive problems, such as headaches, dizziness, and fatigue Skin sensitivity and rash (in case of peptides you apply to your skin) What You Should Know Before you try or buy any dietary supplements: Research the companys website
For dosing conventions used in research, see the GHK-Cu dosage reference
How does the peptide BPC-157 work
Most researchers report meaningful differences in how their weight loss progresses by the two month mark compared to previous diet attempts