Courses
Learn the fundamentals and deepen your peptide research knowledge. Course overviews are public; lesson progress syncs when you are signed in.
How the Peptide Library Works
FoundationsHow the library is organised: evidence levels, dosage review status, canonical profiles versus aliases, and how the dosage chart and price comparison fit together.
Peptide Storage and Stability
FoundationsLyophilised versus reconstituted storage, refrigeration ranges, light and freeze-thaw exposure, and how long a reconstituted vial is usually considered stable.
Peptide Vocabulary
FoundationsThe terms that appear throughout the library: peptide versus protein, secretagogue, half-life, reconstitution, lyophilised, bioavailability and evidence grading.
Scope and Disclaimer
FoundationsWhat this material is and is not. Research peptides are not approved for human use, and nothing on this site is medical advice or a protocol to follow.
Supplies, Reconstitution and Injection Technique
FoundationsWhat a reconstitution setup actually requires, step by step: bacteriostatic water, syringe markings, IU to mg conversion, storage and site rotation.
Using the Peptide Calculator
FoundationsHow to work out concentration and volume from a vial size and a reconstitution amount, and how the site calculator does the same arithmetic for you.
Using the Peptide Library App
FoundationsWhat the mobile app adds over the website: research logging, dose tracking, the reconstitution calculator offline, and reminders.
What Are Peptides?
FoundationsWhat peptides are, how research peptides differ from approved peptide drugs, why manufacturing quality matters, and how to read the evidence behind a compound.
5-Amino-1MQ
Peptide Deep Dives5-Amino-1MQ: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
AICAR
Peptide Deep DivesAICAR: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
AOD-9604
Peptide Deep DivesAOD-9604: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
BPC-157
Peptide Deep DivesBPC-157: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
Bremelanotide (PT-141)
Peptide Deep DivesBremelanotide (PT-141): FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
Cagrilintide
Peptide Deep DivesCagrilintide: clinical-trial dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
CagriSema
Peptide Deep DivesCagriSema (Cagrilintide + Semaglutide): the trials that dosed the combination, the evidence for each component, and what is still not established.
Cartalax
Peptide Deep DivesCartalax: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
CJC-1295
Peptide Deep DivesCJC-1295: limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
CJC-1295 (No DAC) + Ipamorelin Blend
Peptide Deep DivesCJC-1295 (No DAC) + Ipamorelin Blend: what the evidence establishes for each component, and why the combination itself is not graded on it.
CJC-1295 No DAC (Mod GRF 1-29)
Peptide Deep DivesCJC-1295 No DAC (Mod GRF 1-29): insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
Dihexa
Peptide Deep DivesDihexa: limited human evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
DSIP
Peptide Deep DivesDSIP: limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
Epitalon
Peptide Deep DivesEpitalon: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
Follistatin-344
Peptide Deep DivesFollistatin-344: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
GHK-Cu
Peptide Deep DivesGHK-Cu: limited human evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
GHRP-2 + Ipamorelin Blend
Peptide Deep DivesGHRP-2 + Ipamorelin Blend (Pralmorelin + Ipamorelin): what the evidence establishes for each component, and why the combination itself is not graded on it.
GHRP-6
Peptide Deep DivesGHRP-6: limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
GLOW
Peptide Deep DivesGLOW (GHK-Cu + BPC-157 + TB-500): what the evidence establishes for each component, and why the combination itself is not graded on it.
Glutathione
Peptide Deep DivesGlutathione: limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
Gonadorelin
Peptide Deep DivesGonadorelin: limited human evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
hCG (Human Chorionic Gonadotropin)
Peptide Deep DiveshCG (Human Chorionic Gonadotropin): FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
Hexarelin
Peptide Deep DivesHexarelin: limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
Humanin
Peptide Deep DivesHumanin: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
IGF-1 (Mecasermin)
Peptide Deep DivesIGF-1 (Mecasermin): FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
IGF-1 LR3
Peptide Deep DivesIGF-1 LR3: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
Ipamorelin
Peptide Deep DivesIpamorelin: limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
Kisspeptin-10
Peptide Deep DivesKisspeptin-10: limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
Kisspeptin-54
Peptide Deep DivesKisspeptin-54: limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
KLOW
Peptide Deep DivesKLOW (GHK-Cu + BPC-157 + TB-500 + KPV): what the evidence establishes for each component, and why the combination itself is not graded on it.
KPV
Peptide Deep DivesKPV: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
Liraglutide
Peptide Deep DivesLiraglutide: FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
LL-37
Peptide Deep DivesLL-37: limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
Melanotan I (Afamelanotide)
Peptide Deep DivesMelanotan I (Afamelanotide): FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
Melanotan II
Peptide Deep DivesMelanotan II: limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
MK-677 (Ibutamoren)
Peptide Deep DivesMK-677 (Ibutamoren): clinical-trial dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
MOTS-C
Peptide Deep DivesMOTS-C: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
NAD+
Peptide Deep DivesNAD+: limited human evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
Orforglipron
Peptide Deep DivesOrforglipron: FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
P21 (BDNF-Mimetic Peptide)
Peptide Deep DivesP21 (BDNF-Mimetic Peptide): insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
Pralmorelin (GHRP-2)
Peptide Deep DivesPralmorelin (GHRP-2): limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
Retatrutide
Peptide Deep DivesRetatrutide: clinical-trial dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
Selank
Peptide Deep DivesSelank: limited human evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
Semaglutide
Peptide Deep DivesSemaglutide: FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
Semax
Peptide Deep DivesSemax: limited human evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
Sermorelin
Peptide Deep DivesSermorelin: limited human evidence. Mechanism, the dosing actually published with every source cited, and what is still not established.
Setmelanotide
Peptide Deep DivesSetmelanotide: FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
SLU-PP-332
Peptide Deep DivesSLU-PP-332: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
Somatropin (HGH)
Peptide Deep DivesSomatropin (HGH): FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
SS-31 (Elamipretide)
Peptide Deep DivesSS-31 (Elamipretide): FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
Survodutide
Peptide Deep DivesSurvodutide: clinical-trial dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
TB-500
Peptide Deep DivesTB-500: insufficient evidence. Mechanism, why there is no established human dose, and what the widely circulated figures are missing.
Tesamorelin
Peptide Deep DivesTesamorelin: FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
Thymosin Alpha-1
Peptide Deep DivesThymosin Alpha-1: clinical-trial dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
Tirzepatide
Peptide Deep DivesTirzepatide: FDA-approved dosing. Mechanism, the dosing actually published with every source cited, and what is still not established.
Wolverine Stack
Peptide Deep DivesWolverine Stack (BPC-157 + TB-500): what the evidence establishes for each component, and why the combination itself is not graded on it.
Ultimate Peptide Cheat Sheet
StacksGoal-based peptide stacks organized by category: fat loss, recovery, anti-aging, metabolic & energy, cognitive, immune, skin, and hormone & reproductive health. Each combination is described with its components and the proposed rationale; the evidence-graded web version, which states what is and is not established for each, is at peptidelibrary.app/peptide-stacks.