pepteed
Learn45 guides

The bench notes,
written down.

Practical, research-use-only guides on handling, storing and quality-checking lyophilised peptides. No medical or dosing advice — just the lab fundamentals worth getting right.

Reference

Peptide research glossary

Plain-English definitions of CAS, HPLC, CoA, lyophilisation, reconstitution, purity and the other terms you'll find on every product page.

Handling6 min read

How to reconstitute a lyophilised peptide

A step-by-step bench guide to bringing a freeze-dried research peptide back into solution without degrading it.

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Quality7 min read

Reading a Certificate of Analysis

What HPLC purity, mass-spec identity and the other numbers on a CoA actually tell you about a peptide lot.

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Storage5 min read

Storing research peptides the right way

Temperature, light and moisture all degrade peptides. A practical guide to storage before and after reconstitution.

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Quality5 min read

What ≥ 99 % HPLC purity actually means

Purity percentages get quoted everywhere. Here is what the number measures, and what it does not.

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Handling4 min read

Bacteriostatic vs sterile water for reconstitution

The two most common reconstitution solvents differ in one key way. Here is what that difference means at the bench.

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Research6 min read

BPC-157: a research primer

What BPC-157 is at a molecular level, why it is studied in vitro, and how it is handled in the lab.

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Research5 min read

TB-500 explained

A plain-language look at the TB-500 research peptide — what it is, how it relates to thymosin beta-4, and how to handle it.

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Research7 min read

Incretin research peptides: GLP-1, GIP and glucagon

The receptor families behind today's most-discussed metabolic research peptides — and how single, dual and triple agonists differ.

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Research5 min read

What are peptide blends? GLOW, KLOW and Wolverine

Blends combine several research peptides in one vial. Here is how to think about them, and why per-component data still matters.

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Research5 min read

GHK-Cu: the copper peptide, explained

What the GHK-Cu copper tripeptide is, why it shows up in skin and cellular research, and how to handle it.

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Research5 min read

Semax: a research overview

The peptide Semax and its relationship to the ACTH fragment family — structure, research context and handling.

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Research4 min read

Selank: a research overview

What the Selank peptide is, how it relates to tuftsin, and the basics of handling it in the lab.

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Research5 min read

Epithalon: the telomerase tetrapeptide

What Epithalon is, why it appears in longevity and cellular-aging research, and how to handle it.

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Research5 min read

NAD+: the cellular cofactor in research

NAD+ is a coenzyme central to cellular metabolism. Here is what it is and why it features in longevity research.

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Research5 min read

Melanotan-2: a research overview

What Melanotan-2 is, its relationship to the melanocortin system, and how it is handled in the lab.

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Research7 min read

Growth-hormone secretagogues: CJC-1295, Ipamorelin and friends

How GHRH analogues and ghrelin-receptor agonists differ — and why they are often discussed together.

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Research4 min read

MOTS-c: the mitochondrial-derived peptide

What MOTS-c is, why mitochondrial-derived peptides are a research theme, and how to handle it.

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Research4 min read

ARA-290 (cibinetide): a research overview

An erythropoietin-derived peptide studied for tissue-protective signalling distinct from EPO's blood effects.

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Research4 min read

PNC-27: a research overview

A p53-derived membrane-active peptide used as a probe in cancer-cell-model research.

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Research4 min read

LL-37: the human cathelicidin peptide

LL-37 is the human cathelicidin antimicrobial peptide. Here is what it is and how it is handled in research.

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Research3 min read

KPV: the α-MSH tripeptide

KPV is a three-amino-acid fragment of α-MSH studied for anti-inflammatory signalling.

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Research4 min read

VIP: vasoactive intestinal peptide

A 28-amino-acid neuropeptide studied in immune and vascular research.

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Research4 min read

Thymosin Alpha-1: a research overview

A thymus-derived peptide studied extensively in immune-regulation research.

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Research3 min read

Thymalin: a research overview

A thymus-derived peptide preparation studied in immune-modulation and aging research.

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Research4 min read

Sermorelin: the GHRH(1-29) analogue

Sermorelin corresponds to the active first 29 amino acids of growth-hormone-releasing hormone.

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Research4 min read

Tesamorelin: a stabilised GHRH analogue

A growth-hormone-releasing hormone analogue engineered for stability, studied in metabolic research.

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Research3 min read

GHRP-6: a research overview

A growth-hormone-releasing hexapeptide acting on the ghrelin/GH-secretagogue receptor.

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Research3 min read

Hexarelin: a research overview

A synthetic ghrelin-receptor agonist in the GHRP family, studied in GH-pathway research.

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Research4 min read

IGF-1 LR3: a research overview

Long R3 IGF-1, an engineered analogue of insulin-like growth factor 1 with reduced binding-protein affinity.

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Research4 min read

PEG-MGF: a research overview

A pegylated form of mechano growth factor, an IGF-1 splice variant studied in tissue research.

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Research4 min read

CJC-1295 + Ipamorelin: the combination, explained

Why a GHRH analogue and a ghrelin-receptor agonist are combined in one research vial.

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Research4 min read

AOD-9604: a research overview

A modified fragment based on the C-terminus of growth hormone, studied in lipid-metabolism research.

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Research3 min read

HGH Fragment 176-191: a research overview

A peptide corresponding to the C-terminal region of growth hormone, studied in lipid research.

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Research3 min read

5-Amino-1MQ: a research overview

A small-molecule NNMT inhibitor studied in metabolic research — not a peptide.

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Research4 min read

SS-31 (elamipretide): the mitochondria-targeting peptide

A tetrapeptide that localises to mitochondria, studied in mitochondrial-function research.

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Research4 min read

FOX-04: a senescence-research peptide

A peptide studied in senolytic research targeting the FOXO4–p53 interaction.

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Research3 min read

Pinealon: a research overview

A short synthetic peptide bioregulator studied in neuroprotection and aging research.

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Research3 min read

DSIP: delta sleep-inducing peptide

A nonapeptide first isolated in connection with sleep research.

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Research4 min read

Kisspeptin: a research overview

A neuropeptide encoded by the KISS1 gene, central to reproductive-axis research.

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Research3 min read

Oxytocin: a research overview

A nine-amino-acid peptide hormone studied in social-behaviour and neuroendocrine research.

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Research4 min read

PT-141 (bremelanotide): a research overview

A cyclic melanocortin-receptor agonist related to Melanotan-2, studied in melanocortin-system research.

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Research4 min read

Melanotan-1 (afamelanotide): a research overview

A linear α-MSH analogue studied in melanocortin and pigmentation research.

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Research3 min read

AHK-Cu: a copper-peptide overview

A copper tripeptide studied in hair-follicle and skin research alongside GHK-Cu.

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Research3 min read

SNAP-8: a cosmetic-peptide overview

Acetyl octapeptide-3, a cosmetic research peptide studied in expression-line research.

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Research3 min read

SLUP-322: a cosmetic-peptide overview

A synthetic cosmetic research peptide — what to confirm on the Certificate of Analysis before use.

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Research use only

These guides cover general laboratory handling for in-vitro research. Nothing here is medical, clinical or dosing advice.