Research Use Only · Educational Summaries of Preclinical Literature

Tissue Research

BPC-157

BPC-157 (Body Protection Compound-157) is a synthetic pentadecapeptide consisting of 15 amino acids. It is derived from a partial sequence of a p…

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Bioregulator Research

Prostamax

Prostamax is a synthetic tetrapeptide bioregulator developed by the St. Petersburg Institute of Bioregulation and Gerontology. It is designed to …

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Tissue Research

TB-500 (Thymosin Beta-4)

TB-500, the synthetic version of the naturally occurring peptide Thymosin Beta-4 (Tβ4), is a 43-amino acid peptide that plays a fundamental role …

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Tissue Research

Wolverine Blend

The Wolverine Blend combines two of the most studied tissue repair peptides — BPC-157 and TB-500 (Thymosin Beta-4) — into a single formulation. N…

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Metabolic Research

AOD-9604

AOD-9604 is a modified 16-amino acid fragment corresponding to the C-terminal region (amino acids 176-191) of human growth hormone, with an added…

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Metabolic Research

Klow Blend

Klow Blend is a proprietary metabolic peptide formulation combining complementary compounds targeted at fat metabolism, energy regulation, and me…

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Metabolic Research

MOTS-c

MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA-c) is a mitochondria-derived peptide encoded within the mitochondrial genome. Discovered…

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Metabolic Research

Retatrutide

Retatrutide (LY3437943) is an investigational triple hormone receptor agonist developed by Eli Lilly that simultaneously activates GLP-1, GIP, an…

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Metabolic Research

Tesamorelin

Tesamorelin is a synthetic analog of human growth hormone-releasing hormone (GHRH) conjugated with trans-3-hexenoic acid at the N-terminus to enh…

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Metabolic Research

Tirzepatide

Tirzepatide is a novel dual glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1) receptor agonist. It represent…

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Growth Hormone Research

CJC-1295 (NO DAC) + Ipamorelin

This combination pairs CJC-1295 without DAC (a Growth Hormone Releasing Hormone analog) with Ipamorelin (a selective growth hormone secretagogue …

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Growth Hormone Research

Ipamorelin

Ipamorelin is a pentapeptide growth hormone secretagogue that selectively stimulates growth hormone release from the anterior pituitary via the g…

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Growth Hormone Research

Semorelin

Sermorelin (also commonly spelled Semorelin) is a synthetic peptide consisting of the first 29 amino acids of the 44-amino acid sequence of human…

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Anti-Inflammatory Research

KPV

KPV is a naturally occurring tripeptide corresponding to the C-terminal sequence (amino acids 11-13) of alpha-melanocyte-stimulating hormone (alp…

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Longevity Research

NAD+

NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme found in every living cell. It plays essential roles in energy metabolism (mitochondrial e…

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Mitochondrial Research

SS-31 (Elamipretide)

SS-31 (also known as Elamipretide or Bendavia/MTP-131) is a synthetic tetrapeptide that selectively concentrates in the inner mitochondrial membr…

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Bioregulator Research

Thymalin

Thymalin is a synthetic dipeptide bioregulator developed by Professor Vladimir Khavinson at the St. Petersburg Institute of Bioregulation and Ger…

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Immune Research

Thymosin Alpha-1

Thymosin Alpha-1 (Ta1) is a 28-amino acid peptide originally isolated from thymosin fraction 5, a thymus gland extract, by Dr. Allan Goldstein at…

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Neurological Research

P-21

P-21 is a synthetic peptide derived from the active region of Ciliary Neurotrophic Factor (CNTF), a neurotrophin involved in neuronal survival an…

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Neurological Research

Pinealon

Pinealon is a synthetic tripeptide (Glu-Asp-Arg) developed by the St. Petersburg Institute of Bioregulation and Gerontology under the direction o…

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Neurological Research

Selank

Selank is a synthetic heptapeptide derived from the endogenous immune peptide tuftsin (Thr-Lys-Pro-Arg) with an added Pro-Gly-Pro C-terminal trip…

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Neurological Research

Semax

Semax is a synthetic peptide analog of ACTH (adrenocorticotropic hormone), specifically the 4-10 fragment with an added Pro-Gly-Pro C-terminal tr…

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Topical Research

GHK-Cu

GHK-Cu (Glycyl-L-Histidyl-L-Lysine:Copper) is a naturally occurring copper-binding tripeptide found in human plasma, saliva, and urine. Discovere…

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Topical Research

Glow Mix

Glow Mix is a peptide blend centered on GHK-Cu (Glycyl-L-Histidyl-L-Lysine:Copper) designed for skin rejuvenation and dermal health research. The…

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Topical Research

Melanotan-1

Melanotan-1 (also known as afamelanotide) is a synthetic linear analog of alpha-melanocyte-stimulating hormone (alpha-MSH) developed at the Unive…

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Compliance Notice: American Peptides products are sold strictly for laboratory and academic research purposes only. They are not intended for human or veterinary consumption, diagnosis, treatment, or prevention of any disease. Content in the Research Hub summarizes findings from preclinical literature and does not constitute medical advice or product claims. Researchers are responsible for handling these compounds in accordance with their institution's safety protocols and applicable laws.

Research Education Library

Forty plain-English, research-use-only explainers covering peptide science, studied compounds, laboratory quality, and health-literacy concepts. Educational only — no human or animal use, safety, or efficacy claims.

Peptide Foundations & Science

• What Is a Peptide? A Complete Plain-English Guide
  A peptide is a short chain of amino acids linked by peptide bonds. A complete, research-use-only guide to structure, synthesis, purity, and how peptid
• What Is an Amino Acid? Complete Plain-English Guide
  An amino acid is the molecular building block of peptides and proteins. A complete educational guide to structure, side chains, the 20 standard amino
• How Signaling Peptides Work: A Complete Science Explainer
  Signaling peptides bind cell receptors and trigger intracellular cascades. A complete, research-use-only explainer of reception, transduction, amplifi
• The Science Behind Cellular Signaling (Complete Explainer)
  A complete explainer of cellular signaling: signal types, receptors, transduction, amplification, feedback, and why this framework underpins all pepti
• Receptor Pathways: A Researcher's Primer (Complete Guide)
  A complete researcher's primer on receptor pathways: GPCRs, receptor tyrosine kinases, second messengers, desensitization, and why specificity governs
• The History of Peptide Research: A Complete Timeline
  A complete timeline of peptide research: from the peptide bond and early synthesis to solid-phase synthesis and modern analytical QA. Educational, res
• Why Peptides Are Studied in Longevity Research (Complete Guide)
  Why are peptides a focus of longevity research? A complete educational guide to signaling precision, the hallmarks of aging as research targets, and h

Studied Compounds

• What Is BPC-157? A Complete Research-Use-Only Guide
  BPC-157 is a synthetic 15-amino-acid peptide studied in laboratory and animal-model research. A complete research-use-only guide: sequence, origin, st
• What Is TB-500? A Complete Research-Use-Only Guide
  TB-500 is a synthetic peptide related to an active region of thymosin beta-4, studied in laboratory and animal-model research. A complete research-use
• What Is GHK-Cu? Complete Guide to the Copper Tripeptide
  GHK-Cu is a naturally occurring copper-binding tripeptide studied in laboratory research. A complete educational, strictly research-use-only guide.
• What Is IGF-1? Complete Guide to Insulin-Like Growth Factor 1
  IGF-1 (insulin-like growth factor 1) is a naturally occurring polypeptide central to growth and metabolic-signaling research. A complete educational,
• What Is NAD+? Complete Guide to the Cellular Energy Coenzyme
  NAD+ is a coenzyme central to cellular energy metabolism and redox chemistry, heavily studied in longevity science. A complete educational, research-u

Quality, Methods & Handling

• What Is Peptide Purity? Complete COA Interpretation Guide
  Peptide purity is the HPLC-measured percentage of a sample that is the target molecule. A complete guide to purity, net peptide content, and reading a
• What Is a Certificate of Analysis (COA)? Complete Guide
  A Certificate of Analysis (COA) reports a specific lot's identity and purity test results. A complete guide to what a credible peptide COA includes an
• What Is Lyophilization? Complete Freeze-Drying Guide
  Lyophilization (freeze-drying) removes water from a frozen material under vacuum. A complete guide to the three stages, the chemistry, and why researc
• What Is Reconstitution? Research Solvent Chemistry Guide
  Reconstitution is dissolving a lyophilized research peptide in an appropriate solvent. A complete guide to the solvent chemistry, concentration math,
• What Is Mass Spectrometry in Peptide QA? Complete Guide
  Mass spectrometry confirms a peptide's identity by measuring its molecular mass. A complete guide to how it works, what it proves, and why it pairs wi
• What Is Net Peptide Content? Purity vs Content Guide
  Net peptide content is how much of a vial's dry mass is actually peptide versus salts and water. A complete guide to why it differs from purity and wh

Longevity & Preventive Concepts

• Healthspan vs Lifespan: What the Difference Means
  Lifespan is how long an organism lives; healthspan is how long it stays healthy. A complete educational guide to the distinction and why longevity res
• What Is Mitochondrial Health? A Cell Biology Explainer
  Mitochondria are the cell's energy organelles. A complete educational explainer of what 'mitochondrial health' means as a research concept and how it
• The Future of Longevity Medicine: A Research Overview
  Longevity medicine is an emerging research-oriented field focused on healthspan and measurement. A complete educational overview of its direction and
• The Rise of Preventive Health Science: An Overview
  Preventive health science emphasizes measuring and tracking biology before problems arise. A complete educational overview of the concept and its meas

Recovery & Measurement

• The Science of Recovery as a Measured Variable
  Recovery is increasingly treated as something measurable rather than felt. A complete educational guide to recovery as a defined, tracked research var
• Why Recovery Is Becoming a Performance Metric
  Recovery is shifting from an afterthought to a tracked performance metric. A complete educational overview of why measurement is driving that change.
• What Research Says About Sleep and Cellular Repair
  Sleep is studied as a period associated with cellular maintenance processes. A complete educational overview of what the research framework says and i
• Inflammation Biomarkers Explained: A Science Guide
  Inflammation biomarkers are measurable signals that reflect inflammatory activity. A complete educational guide to what they represent and how researc

Lab Marker Literacy

• What HbA1c Measures: A Plain-English Lab Marker Guide
  HbA1c reflects average blood glucose over roughly three months. A complete educational guide to what the marker measures, how the chemistry works, and
• What SHBG Measures: A Plain-English Lab Marker Guide
  SHBG is a transport protein that binds sex hormones in the blood. A complete educational guide to what the marker measures and why it affects hormone
• Total vs Free Testosterone: The Assay Difference Explained
  Total testosterone measures all of it; free testosterone measures the unbound fraction. A complete educational guide to why the two assays differ and
• Why Ongoing Lab Monitoring Matters: The Trend Principle
  A single lab result is a snapshot; trends over time carry more information. A complete educational guide to why repeated, contextual lab monitoring is
• Understanding Appetite Signaling: A Science Explainer
  Appetite is regulated by a network of hormonal and neural signals. A complete educational explainer of how appetite signaling works as a research conc

Metabolic & Hormone Science

• What Is a GLP-1 Receptor Agonist? A Science Explainer
  A GLP-1 receptor agonist is a molecule that activates the GLP-1 receptor. A complete educational explainer of the receptor pharmacology concept and it
• How GLP-1 Pathway Research Is Framed: An Explainer
  An educational explainer of how research describes the GLP-1 signaling pathway at a mechanism level, and the strict limits of that description.
• What Is Hormone Optimization? A Concept Explainer
  Hormone optimization is a framing used in wellness discussion. A complete educational explainer of what the term means conceptually and its strict lim
• What Happens to Testosterone With Age: General Science
  A general educational overview of how research describes age-related patterns in testosterone, framed strictly as physiology with clear interpretation
• Symptoms Associated With Low Testosterone: Overview
  A general educational overview of symptoms research associates with low testosterone, framed strictly as non-specific information with clear clinical

Healthcare Literacy

• How Modern Telehealth Is Expanding Access: Overview
  An educational overview of how telehealth has changed the logistics of accessing licensed care, framed neutrally with clear limits.
• Understanding Men's Wellness Clinics: A Neutral Overview
  A neutral educational overview of what the term 'men's wellness clinic' generally refers to, framed without endorsement and with clear limits.
• The Role of Licensed Providers in Optimization Medicine
  An educational overview of why licensed professionals are central to any legitimate measurement-driven health framing, with clear limits.
• Questions People Ask About Testosterone Therapy
  A neutral educational overview of the kinds of questions people raise about testosterone therapy, framed strictly as literacy that points to professio