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Peptide Cycles Directory
Peptide Cycle Length Guides: Browse the A-Z Library
Research references for active periods, breaks, study durations, and the evidence behind peptide and blend cycle lengths.
Directory
A-Z Peptide + Blend Cycle Directory
Browse the peptide and blend cycle-length guides currently published on PDP.
11 indexed entries
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1 entriesA
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1 entriesK
2 entriesN
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1 entriesSmall Business
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How to Use This Cycle Library
Use the letter filter to find a published peptide or named blend cycle guide. Every entry in this directory opens a complete cycle-length page.
Cycle pages focus on duration rather than dosing. They separate community-reported schedules from controlled research, compare shorter and longer timeframes, and explain when evidence from an individual ingredient cannot be applied to a complete blend.
For dose ranges, reconstitution, and frequency, use the protocol library. For multi-compound dosing schedules, use the stack library.
To keep calculations, schedules, and cycle notes together, read our guide to choosing a peptide tracker app.
Published Peptide Cycle Guides
5-Amino-1MQ · Published
5-Amino-1MQ Cycle Length: Research & Community Cycles
How long should a 5-Amino-1MQ cycle be? Compare 11-day, 28-day, and about 7-week animal studies with the common 8–12 week community cycle and 4–6 week off period.
View cycle guideAOD-9604 · Published
AOD-9604 Cycle Length: 8, 12 and 24 Week Research Guide
Compare published 12- and 24-week AOD-9604 trials with community 8- to 16-week cycle schedules, dose math, review points, and evidence limits.
View cycle guideCartalax · Published
Cartalax Cycle Length: 8, 12 & 16-Week Schedules
Compare 8, 12, and 16-week Cartalax cycle schedules, total milligrams, 20 mg vial requirements, cycle breaks, and community evidence limits.
View cycle guideIpamorelin · Published
Ipamorelin Cycle Length: 8, 12 & 16 Week Research Context
Compare 8-, 12-, and 16-week Ipamorelin cycle claims with published human study durations, off-cycle evidence, and what research actually supports.
View cycle guideKLOW Stack · Published
KLOW Peptide Cycle Length: How Long Is a KLOW Cycle? (2026)
Explore KLOW cycle length, common 4-6 and 8-12 week community schedules, research study durations, off periods, and what the evidence actually shows.
View cycle guideKPV · Published
KPV Cycle Length: How Long Is a KPV Peptide Cycle? (2026)
Compare 4-, 6-, 8-, and 12-week KPV cycle frameworks, reported off periods, animal study timelines, and clear 10 mg vial-planning math.
View cycle guideNAD+ · Published
NAD+ Cycle Length: Research Schedules, Breaks & Duration
How long is an NAD+ cycle? Compare human research schedules, 4-, 8-, and 12-week cycle claims, injection breaks, loading phases, and what the evidence does not establish.
View cycle guideRetatrutide · Published
Retatrutide Cycle Length: What Clinical Trials Actually Studied
How long is a retatrutide cycle? Compare 12-week research with 36-, 48-, 68-, 80-, and 104-week trials, plus time-off and maintenance evidence.
View cycle guideSelank · Published
Selank Cycle Length: 14-Day Course, Breaks & Repeat Timing
Selank cycle length guide covering the 14-day Russian intranasal course, 1-3 week repeat timing, 21-day study extensions, and limits of injectable cycle evidence.
View cycle guideTB-500 · Published
TB-500 Cycle Length: How Long Is a TB-500 Cycle? (2026)
How long is a TB-500 cycle? Compare 4-, 6-, 8-, and 12-week community cycle frameworks, off periods, full-length thymosin beta-4 research durations, and the evidence limits.
View cycle guideWolverine Stack · Published
Wolverine Stack Cycle Length: 6–12 Week Research Schedules
Review common 4–6, 6–8, and 8–12 week Wolverine Stack cycle patterns, loading and maintenance phases, time off, and the limits of BPC-157 + TB-500 evidence.
View cycle guideFrequently Asked Questions: Peptide Cycle Library
What is a peptide cycle guide?
A peptide cycle guide compares reported active periods, breaks, study durations, and evidence limits for a peptide or blend. It is separate from a dosing protocol, which focuses on dose, frequency, reconstitution, and syringe-unit math.
Which peptide cycle guides are currently published?
The 5-Amino-1MQ cycle-length guide, AOD-9604 cycle-length guide, Cartalax cycle-length guide, Ipamorelin cycle-length guide, KLOW peptide cycle-length guide, KPV cycle-length guide, NAD+ cycle-length guide, Retatrutide cycle-length guide, Selank cycle-length guide, TB-500 cycle-length guide, and Wolverine Stack cycle-length guide are published. Each guide separates community schedules from published research timelines.
Are the cycle lengths recommendations?
No. These pages are educational research references. Community schedules are labeled separately from published studies, and reported cycle lengths are not presented as medical advice or human-use recommendations.