Limitations: Gastrointestinal adverse effects, particularly nausea and vomiting, were common and contributed to relatively high dropout rates
10.1097/01.JAA.0000669452.63883.45 62
GHK-Cu (Copper Peptide), a naturally occurring peptide composed of three amino acids (glycyl-L-histidyl-L-lysine), has been extensively studied for its potential in wound healing, tissue regeneration, and skin rejuvenation
Initial 4-day body-weight changes were comparable
Possible side effects include: Nausea, diarrhea, vomiting, constipation, mild to moderate abdominal pain, headache, fatigue, dyspepsia, dizziness, abdominal distension, belching, hypoglycemia, flatulence, gastroenteritis, loss of lean muscle mass and gastroesophageal reflux disease
It is about rhythm