Peptide Science
Explore the evolving science of peptides, metabolic signaling, recovery, body composition, skin health, and human performance.
Small molecules.
Fascinating science.
Peptides are short chains of amino acids that can act as signaling molecules throughout the body. Naturally occurring peptides are involved in numerous biological processes including metabolism, hormone signaling, appetite regulation, tissue communication, pigmentation, and growth.
Advances in peptide research have led to a rapidly expanding field of pharmaceutical development and scientific investigation. Some peptide-based medications have established FDA-approved uses, while many other compounds remain investigational or have limited human clinical data.
Explore several of today's most discussed peptide and peptide-related compounds below.
Metabolic & Appetite Signaling
Peptide-based metabolic compounds interact with signaling pathways involved in appetite, glucose regulation, satiety, and energy balance.
Semaglutide
A GLP-1 receptor agonist associated with appetite, satiety, glucose regulation, and metabolic signaling.
Tirzepatide
A dual incretin receptor agonist affecting both GIP and GLP-1 metabolic signaling pathways.
Retatrutide
A compound being studied for simultaneous activity at GLP-1, GIP, and glucagon receptors.
Cagrilintide
An investigational long-acting amylin analog being studied for its effects on satiety, food intake, and metabolic signaling.
Repair & Recovery
Certain investigational peptides have attracted attention in laboratory and early-stage research involving tissue signaling, vascular processes, and wound-healing pathways.
BPC-157
An investigational peptide commonly discussed in research involving gastrointestinal and tissue-repair pathways.
TB-500
An investigational peptide fragment associated with research into cellular movement and wound-related pathways.
Why the Interest?
Peptide research is exploring how signaling molecules influence communication between cells. Recovery-related peptides are an especially active area of discussion, but laboratory findings should not be assumed to translate into proven clinical outcomes.
Contact Us →Growth Hormone Pathway
These compounds interact with growth hormone-releasing pathways through different receptors and mechanisms.
Tesamorelin
A growth hormone-releasing factor analog that stimulates endogenous growth hormone signaling.
Sermorelin
A GHRH-related peptide associated with stimulation of the body's own growth hormone signaling pathway.
Ipamorelin
A synthetic secretagogue studied for its interaction with receptors involved in growth hormone release.
Tesamorelin + Ipamorelin
Two compounds associated with different pathways involved in endogenous growth hormone signaling.
GHK-Cu
Copper-binding peptides have generated interest in dermatologic, cosmetic, wound-healing, and cellular research.
GHK-Cu
A naturally occurring copper-binding peptide studied in connection with skin biology, collagen signaling, wound processes, and hair research.
Beyond Aesthetics
Peptides can participate in highly specific cellular signaling. Understanding the receptor or biological pathway involved is essential when separating promising science from unsupported wellness claims.
Contact Us →PT-141
Melanocortin signaling represents a distinctly different pathway from medications that primarily act through blood-vessel mechanisms.
PT-141
A melanocortin receptor agonist associated with central nervous system pathways involved in sexual desire.
Melanocortin Signaling
PT-141 is noteworthy because its mechanism centers on melanocortin receptors and central signaling rather than functioning in the same manner as traditional PDE-5 medications.
Contact Us →Curious about peptide science?
Our team is happy to provide additional information and help you better understand the differences between these compounds, their mechanisms, and the current science surrounding them.
Contact Us for More InformationThis page is provided for general educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. The compounds discussed vary substantially in FDA approval status, available clinical evidence, regulatory status, intended use, and safety data. References to scientific research or biological mechanisms should not be interpreted as establishing safety, effectiveness, availability, or medical appropriateness. Some compounds discussed are investigational and do not have FDA-approved therapeutic indications. Individual medical decisions should be made with an appropriately licensed healthcare professional.