Peptides are short chains of amino acids that act as signalling molecules, telling cells how to behave. Clinically, they are used to support specific processes such as recovery, metabolism and cognition, rather than as a general tonic.
There is no single thing called a peptide in clinical use. They differ from one another in what they signal and how well studied they are. That is why a conversation about peptides is really a conversation about one specific compound and one specific goal.
Whether any of them suit you depends on your health profile, which a doctor assesses in the consult. Some people are better served by addressing sleep, training, nutrition or hormones first.
