Liraglutide (Saxenda) Liraglutide is the oldest GLP-1 medication and requires daily injection rather than weekly, which is less convenient but offers one significant advantage: there is a specific clinical trial studying its use in postpartum women
Some of the most common classes include: Hormonal peptides like Tesamorelin or GH-releasing peptides , which regulate growth hormone output Repair peptides like BPC-157 and TB-500 , which aid in tissue regeneration and wound healing Metabolic peptides such as CJC-1295 or GLP-1 analogs , which influence fat loss and insulin response Muscle-building peptides including IGF-1 LR3 and PEG-MGF , which promote hypertrophy and muscle recovery Peptides function as highly specific signaling molecules in the endocrine, nervous, and immune systems and their therapeutic potential continues to grow. Craik et al., Chemical Biology & Drug Design Are Peptides Natural or Synthetic
It is among the most extensively studied repair compounds in peptide research, notable for showing activity across musculoskeletal, gastrointestinal and neurological models rather than a single system
As for the two methods by which GHK-Cu may be administered: GHK-Cu cream side effects Researchers have not attributed any side effects to topical GHK-Cu formulas tested to date, and all available research shows that the peptide is non-toxic and a non-irritant when applied directly to the skin [5]