Hub 04

Compound Research Profiles

Pathway-organized reviews of incretin and metabolic receptors, hypothalamic and pituitary signaling, mitochondrial peptides, cellular senescence, neuroendocrine peptides, innate immune peptides, and matrix biology.

Articles47
Last reviewedJune 26, 2026
ReviewersJacob Leisher, Jacob Doyon, Researchers, Cendrix

Overview

Compound research profiles describe what is known and unknown about individual molecules. They are organized by pathway rather than by consumer outcome because the receptor, second-messenger, and tissue context are what determine which literature is applicable.

Incretin and metabolic receptor pharmacology covers GLP-1, GIP, glucagon, amylin, and the dual and triple receptor agonists that combine them. Hypothalamic and pituitary signaling covers GHRH analogues, ghrelin receptor agonists, and the regulatory feedback that governs growth hormone release. Mitochondrial signaling addresses peptides such as MOTS-c and SS-31. Cellular senescence covers FOXO4-related research molecules and emerging senolytic peptides. Neuroendocrine signaling covers melanocortin-system peptides and oxytocin-family analogues. Innate immune peptides cover LL-37 and related antimicrobial sequences. Matrix and tissue-response biology covers BPC-157 analogues, thymosin beta-4, and GHK-Cu.

Each profile separates molecule-level evidence from product-level status. A receptor binding study describes a molecule; it does not describe an arbitrary commercial preparation that bears the same name. Lot identity, analytical documentation, and storage history are what connect a literature claim to a vial.

These profiles do not recommend administration, dosing, or therapeutic use. They support the design of in vitro and animal-model research and the responsible reading of published findings.

Start here

  1. 01Can Peptides Cross the Blood-Brain Barrier?
  2. 02Peptide Immunogenicity: Why Small Molecules Can Still Trigger Immune Responses
  3. 03What the 2025 FDA Peptide Approval Landscape Tells Us

Emerging Trends

Comparative Science

Compound Research

June 8, 2026 · 4 min
SNAP-8 and SNARE-Complex-Inspired Cosmetic Peptide Research
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June 7, 2026 · 4 min
L-Carnitine and the Mitochondrial Carnitine Shuttle
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June 6, 2026 · 4 min
Glutathione Research: Redox Biology, Formulation, and Route Dependence
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June 5, 2026 · 4 min
NAD+ Research: Cofactor Biology vs Direct Administration Claims
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June 4, 2026 · 4 min
SLU-PP-332 Is Not a Peptide: ERR Agonism and Exercise-Mimetic Research
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June 3, 2026 · 4 min
5-Amino-1MQ Is Not a Peptide: NNMT Inhibition and Preclinical Metabolic Research
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June 2, 2026 · 4 min
Thymalin and the Problem of Poorly Defined Peptide Mixtures
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June 1, 2026 · 4 min
TB-500 vs Thymosin Beta-4: Why the Names Cannot Be Used Interchangeably
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May 31, 2026 · 4 min
Thymosin Alpha-1 and Immune Signaling Research
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May 30, 2026 · 4 min
LL-37 and the Dual Nature of Antimicrobial Peptide Signaling
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May 29, 2026 · 5 min
GHK-Cu: Copper Binding, Matrix Biology, and Route-Specific Evidence
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May 28, 2026 · 4 min
DSIP Research: A Historical Peptide With an Uncertain Target
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May 27, 2026 · 4 min
Semax Research: Neurotrophic Signaling, Regional Literature, and Unanswered Questions
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May 26, 2026 · 4 min
Selank Research and the Difficulty of Validating Neurobehavioral Peptides
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May 25, 2026 · 4 min
Epitalon Research: Telomeres, Circadian Biology, and Evidence Gaps
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May 24, 2026 · 4 min
FOXO4-DRI and the Experimental Biology of Cellular Senescence
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May 23, 2026 · 4 min
MOTS-c and Mitochondrial-to-Nuclear Signaling
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May 22, 2026 · 4 min
Melanotan II: Broad Melanocortin Activity and Significant Safety Questions
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May 21, 2026 · 4 min
Bremelanotide and Central Melanocortin Signaling
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May 20, 2026 · 5 min
Oxytocin Research Beyond the Headlines
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May 19, 2026 · 4 min
Kisspeptin and the Control of Reproductive Neuroendocrine Signaling
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May 18, 2026 · 4 min
IGF-1 LR3 and the Challenge of Translating Growth-Signaling Research
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May 17, 2026 · 4 min
Tesamorelin: A Defined GHRH Analogue With Established Human Research
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May 16, 2026 · 4 min
Sermorelin and the Biology of GHRH(1-29)
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May 15, 2026 · 4 min
Ipamorelin and Ghrelin-Receptor Research
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May 14, 2026 · 5 min
CJC-1295, Mod GRF(1-29), and Why Product Identity Matters
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May 13, 2026 · 4 min
AOD-9604: From Growth-Hormone Fragment to Uncertain Research Candidate
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May 12, 2026 · 5 min
BPC-157 Research: What the Evidence Actually Shows
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May 11, 2026 · 5 min
Amylin Biology and the Research Rationale for Cagrilintide
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May 10, 2026 · 5 min
Triple-Receptor Agonism: What Retatrutide Research Is Testing
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May 9, 2026 · 5 min
Dual GIP/GLP-1 Receptor Agonism: The Science Behind Tirzepatide
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May 8, 2026 · 6 min
How GLP-1 Receptor Agonism Is Studied in Metabolic Research
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Primary references

  1. [1]PubMed
  2. [2]ClinicalTrials.gov
  3. [3]DrugBank