Best sellerBPC-157 Guide
$14BPC-157: mechanism, reported effects, evidence status, half-life and storage — gastrointestinal and tissue-repair research.
Educational Library
A growing library of 55 educational peptide guides built from primary sources — FDA labels, trial registries and the papers themselves — each covering what the compound is, what has been trialled, its half-life, side effects and regulatory status.

Single-Guide Access
$14
Any available guide
All-Access Lifetime
$99
All guides — current + future library
Start with the most popular educational guides in the library, then explore the rest of the catalog below.
Best sellerBPC-157: mechanism, reported effects, evidence status, half-life and storage — gastrointestinal and tissue-repair research.
Best sellerFree GHK-Cu guide for skin, tissue, and cosmetic research: how it works, what studies report, half-life, side effects and storage.
Best sellerTB-500 explained — mobility and soft-tissue research. Evidence status, half-life, storage and sourcing.
Best sellerCJC-1295: mechanism, reported effects, evidence status, half-life and storage — growth-hormone-axis research.
Explore the full peptide guide library. Every guide follows the same educational format and can be purchased individually.

Free Ipamorelin guide: how it works, what studies report, half-life, side effects and storage.

Semaglutide explained — metabolic and GLP-1 research. Evidence status, half-life, storage and sourcing.

Tirzepatide: mechanism, reported effects, evidence status, half-life and storage — metabolic and incretin research.

Free Retatrutide guide: how it works, what studies report, half-life, side effects and storage.

Tesamorelin explained — body-composition and endocrine research. Evidence status, half-life, storage and sourcing.

Sermorelin: mechanism, reported effects, evidence status, half-life and storage — growth-hormone-axis research.

Free Thymosin Alpha-1 guide for immune research: how it works, what studies report, half-life, side effects and storage.

PT-141 explained — melanocortin research. Evidence status, half-life, storage and sourcing.

Oxytocin: mechanism, reported effects, evidence status, half-life and storage — social-bonding and reproductive research.

Free Epithalon guide for cellular-aging research: how it works, what studies report, half-life, side effects and storage.

KPV explained — skin, gut, and inflammatory research. Evidence status, half-life, storage and sourcing.

Selank: mechanism, reported effects, evidence status, half-life and storage — neurocognitive research.

Free Semax guide for neurocognitive research: how it works, what studies report, half-life, side effects and storage.

DSIP explained — sleep and neuroendocrine research. Evidence status, half-life, storage and sourcing.

Kisspeptin-10: mechanism, reported effects, evidence status, half-life and storage — reproductive-axis research.

Free ARA-290 guide: how it works, what studies report, half-life, side effects and storage.

5-Amino-1MQ explained — metabolic research. Evidence status, half-life, storage and sourcing.

MOTS-c: mechanism, reported effects, evidence status, half-life and storage — mitochondrial and metabolic research.

Free SS-31 guide: how it works, what studies report, half-life, side effects and storage.

IGF-1 LR3 explained — growth-factor and anabolic-signaling research. Evidence status, half-life, storage and sourcing.

Glutathione: mechanism, reported effects, evidence status, half-life and storage — oxidative-stress and detoxification research.

Free SLU-PP-332 guide: how it works, what studies report, half-life, side effects and storage.

GHRP-2 explained — growth-hormone-secretagogue and ghrelin-receptor research. Evidence status, half-life, storage and sourcing.

GHRP-6: mechanism, reported effects, evidence status, half-life and storage — growth-hormone-secretagogue and appetite-signaling research.

Free Melanotan II guide: how it works, what studies report, half-life, side effects and storage.

Mod GRF 1-29 / CJC-1295 no DAC: the only human CJC-1295 study tested the DAC version at 60-90 mcg/kg, the unmeasured half-life, and what a purity report can establish.

NA-Semax Amidate: mechanism, reported effects, evidence status, half-life and storage — neuroprotective and cognitive-signaling research.

N-Acetyl Selank Amidate: the +41 Da mass difference a certificate of analysis must show, why purity cannot establish identity, the salt-form correction to every concentration, and the two figures this page retracted.

Gonadorelin explained — hypothalamic-pituitary-gonadal (HPG) axis research. Evidence status, half-life, storage and sourcing.

Cagrilintide: the sourced 159-195 hour half-life, and what the 2026 REIMAGINE and REDEFINE phase 3 trials measured — including the 0.16-point HbA1c result.

Free NAD+ guide: how it works, what studies report, half-life, side effects and storage.

LL-37 explained — antimicrobial, wound-repair, and immune-modulation research. Evidence status, half-life, storage and sourcing.

Cartalax (AED, Ala-Glu-Asp): the sequence it is actually indexed under, what its eighteen indexed records tested, including the 2023 cartilage-cell studies and four rat experiments, half-life, storage and what the evidence shows.

Free Thymalin guide for thymic and immune-modulation research: how it works, what studies report, half-life, side effects and storage.

Thymulin (FTS-Zn): the zinc-dependent thymic nonapeptide — how it differs from Thymalin, what the two double-blind human trials actually found, published trial doses, storage and sourcing.

MGF, the IGF-1Ec E-peptide: two pharmaceutical companies could not reproduce its claimed effect, no half-life has ever been measured, and the active research on it is oncology. PEG-MGF has its own guide.

Follistatin 344: mechanism, reported effects, evidence status, half-life and storage — myostatin-inhibition and muscle-mass research.

Free Hexarelin guide: how it works, what studies report, half-life, side effects and storage.

VIP explained — immune-modulation and inflammatory research. Evidence status, half-life, storage and sourcing.

PE-22-28: mechanism, reported effects, evidence status, half-life and storage — TREK-1 channel and mood/neurogenesis research.

Free AHK-Cu guide: how it works, what studies report, half-life, side effects and storage.

Melanotan I explained — melanocortin and skin-pigmentation research. Evidence status, half-life, storage and sourcing.

AOD-9604: the confirmatory Phase 2b that missed its endpoint, why every human trial was oral or IV, the storage figures and the regulatory status.

HGH Fragment 176-191: what its own cited sources actually show, how it differs from AOD-9604 and the 177-191 sequence, half-life and storage.

Pinealon (EDR): the Khavinson short-peptide literature and who produced it, the rodent-to-human evidence gap, and how to read a certificate of analysis.

Dihexa: the retracted literature behind the nootropic claims, the unresolved tumour-growth concern, why it needs DMSO rather than bacteriostatic water.

PEG-MGF: what PEGylation does and does not change, the unmeasured half-life claim, the vendor non-standardisation problem, and storage.

Cerebrolysin: a porcine brain hydrolysate, not a peptide — the trial infusion regimens, the 1,070-patient CASTA null result, Cochrane's adverse-event finding, and why nothing here is reconstituted.

Mazdutide (IBI362 / LY3305677): the glucagon/GLP-1 dual agonist approved in China in 2025 — what the phase 3 programme measured, the trade-off at the top of the range, and the storage figures.

Survodutide (BI 456906): the investigational glucagon/GLP-1 dual agonist — what SYNCHRONIZE-1 reported, the months-long titration as published, and the storage figures.

P11-4 (Curodont, oligopeptide-104): a self-assembling dental enamel biomaterial — applied to a tooth surface rather than injected, and not systemic.
One standalone guide covers the material that does not belong to any single compound — how the bloodwork that measures peptides is read. It is included with All-Access Lifetime.
Standalone guideWhich blood markers matter on peptides, how each one is read against your own baseline rather than a population range, and the marker map for every compound in the library.
Choose single-guide access for any currently available guide or library-wide lifetime access that includes current and future guide releases.
Single-Guide Standard Access
$14
Access to one guide topic at a time. Quick-add is shown below for available guides.
All-Access Lifetime
$99
Library-wide access to all 55 guides — current and future releases — plus downloadable resources.
Every guide follows the same seven-section structure: an at-a-glance summary, what the compound is and how it works, evidence and regulatory status, half-life and pharmacokinetics, reported side effects and toxicology, storage and handling, and the source references.
Sections 1–2
What it is and how it works
An at-a-glance summary, then the compound's class and proposed mechanism — described as what research suggests, not as settled fact.
Sections 3–5
Evidence, half-life and safety
What has actually been trialled and whether it is approved anywhere, the reported half-life with the study it comes from, and the side effects observed — including where the record is thin.
Sections 6–7
Storage and sources
Storage and handling, and the source references behind every figure — the same structure across all 55 guides.
Most of these compounds are supplied as a lyophilized powder and are reconstituted with bacteriostatic water before laboratory use; a few are not reconstituted at all and say so on their own pages. Read how to reconstitute peptides or buy USP-grade bacteriostatic water.
Every guide page follows the same seven-section structure: an at-a-glance summary, what the compound is and how it works, evidence and regulatory status, half-life and pharmacokinetics, reported side effects and toxicology, storage and handling, and the source references — all free to read. Single-guide access adds that compound's Evidence File, Sourcing File and Benefit & Outcome Review; All-Access adds those for every compound plus the printable reference sheets. The guides do not publish dosage ranges; they are educational reference material, not personal-use instructions.
The printable reference sheet and vial record — each compound's key facts, storage guidance and a blank vial record — come with All-Access Lifetime, which covers every compound in the library plus future releases. Single-guide access is the written depth for one compound: its Evidence File, Sourcing File and Benefit & Outcome Review.
55 peptide guide topics today, covering compounds such as BPC-157, TB-500, GHK-Cu, CJC-1295, Semaglutide, Tirzepatide, and Retatrutide. All-Access Lifetime also includes future guide releases as the library grows.
Single-guide Standard Access unlocks one compound's three paid files: the Evidence File, the Sourcing File and the Benefit & Outcome Review. All-Access Lifetime unlocks those for the entire library — current and future guides — plus the downloadable PDF reference bundle and printable worksheet pack.
No. Guides are educational, research-context reference material only. They do not provide personal-use dosing, administration, or protocol instructions.
A half-life is the time taken for the concentration of a compound in plasma to fall by half, and it is the single figure that most shapes how a compound is studied — it is the reason sermorelin, cleared in about ten minutes, was trialled as a once-daily bedtime injection while a long-acting analog is not. Every guide states it because it is the most frequently searched-for and most frequently mis-stated figure in this category. Where no human pharmacokinetic study exists, the guide says so rather than repeating a number that circulates without a source.
Both, and each guide distinguishes them explicitly rather than blending them. Where an FDA-approved label exists — as it does for SS-31 (Forzinity), PT-141 (Vyleesi) and tesamorelin (Egrifta) — the approved dose, pharmacokinetics and adverse-reaction table are taken from the label and cited as such. Where trial data exists without approval, the guide cites the trial, including negative and terminated ones. Where only community reports exist, the guide says that plainly and explains where the figures came from. Several guides state that no published human half-life exists rather than repeating an unsourced number.
Educational use only — not medical advice. This guide summarizes information reported in published research and community practice for educational purposes. It is not medical advice and not a recommendation to use any compound. Any doses, schedules, or combinations shown are examples of what has been reported, not instructions for you. Many peptides described here are research compounds that are not FDA-approved for the uses discussed and may be investigational or restricted. Effects, risks, and legal status vary; individual needs and results vary. Consult a qualified, licensed healthcare professional before making any decision. Do not use this content to diagnose, treat, or dose yourself.