Guides 8 min read
OptiPin Explained: What the TRT/Peptide Tracker Actually Does
OptiPin is an iOS-only TRT and peptide tracker. Here's what it costs, what it tracks, and how it compares to a fuller protocol app in 2026.
The Pep Journal
Blog
Protocols, research, and practical guides for peptide therapy, TRT, and GLP-1.
Guides 10 min read
Epithalon Peptide in 2026: What the Evidence Says
A clear, evidence-based look at epithalon peptide's mechanisms, dosing, FDA status, and safety data for 2026.
Guides 12 min read
11 Must-Have Features in a TRT Tracking App (2026)
Choosing a TRT tracking app in 2026? Here are 11 features that matter most, from dose logging to site rotation and adherence insights.
Guides 10 min read
Reconstitution Calculator Molarity: The Math Explained
Understand the molarity math behind reconstitution calculators in 2026, with formulas, unit conversions, and real dosing examples explained clearly.
Guides 11 min read
Peptide Tracker App for Android: 9 Things to Check
Choosing a peptide tracker app for Android in 2026? Here are 9 features that matter most for dosing, site rotation, and symptom logging.
Guides 12 min read
TRT Tracker: How to Monitor Testosterone Therapy in 2026
A TRT tracker keeps labs, doses, and symptoms in one place. Learn what to monitor, when, and how to build a system that catches problems early.
Guides 12 min read
Retatrutide Reconstitution Calculator: 2026 Step-by-Step
Learn to use a retatrutide reconstitution calculator in 2026: convert vial strength, diluent, and dose into exact syringe units, step by step.
Guides 4 min read
Dose Tracking for Peptides: The 2026 Explainer
Learn how dose tracking works for peptides, TRT, and GLP-1s in 2026 — site rotation, adherence, and what a protocol tracker actually does.
Guides 10 min read
Semax Peptide Dosing: A 2026 Step-by-Step Guide
Learn how Semax peptide dosing works in 2026 — from mcg-to-drop math to clinical protocols and healthy-adult use, step by step.
Guides 9 min read
CJC-1295/Ipamorelin vs BPC-157: 2026 Comparison Guide
CJC-1295/Ipamorelin and BPC-157 serve different goals. Compare mechanisms, stacking logic, and tracking tips for your 2026 peptide protocol.
Guides 9 min read
Build a Peptide Tracker Spreadsheet: 2026 Step-by-Step Guide
Learn to build a peptide tracker spreadsheet with the right columns, rotation logic, and adherence tracking — or skip the setup with Pep.
Guides 9 min read
Tesamorelin or Ipamorelin: 2026 Comparison Guide
Tesamorelin vs ipamorelin in 2026: FDA status, mechanism, dosing, and side effects compared so you know exactly what you're choosing between.
Guides 10 min read
10 Must-Have Features in a Peptide Tracking App (2026)
Compare the 10 features that matter most in a 2026 peptide tracking app, from dose scheduling to symptom logs and inventory alerts.
Guides 9 min read
CJC-1295/Ipamorelin vs Tesamorelin: 2026 Comparison
CJC-1295/Ipamorelin vs tesamorelin compared: mechanism, legal status, dosing, safety, and cost — a clear 2026 breakdown for protocol trackers.
Guides 8 min read
CJC-1295 & Ipamorelin Dosing Protocol: A Step-by-Step Guide
A practical 2026 walkthrough for building a CJC-1295 and Ipamorelin dosing protocol, from reconstitution to timing, tracking, and side-effect monitoring.
Guides 10 min read
Tesamorelin/Ipamorelin Results in 2026: What Evidence Shows
What do tesamorelin and ipamorelin results actually show in 2026? A clear look at FDA data, trial evidence, and what's proven versus unproven.
Guides 9 min read
Tirzepatide Reconstitution Calculator App: 7 Must-Haves
Compare the 7 features that matter most in a tirzepatide reconstitution calculator app before your next mix in 2026.
Guides 9 min read
Cagrilintide with Retatrutide: How the Combo Works in 2026
Cagrilintide with retatrutide explained: mechanisms, trial data, dosing logic, and how to track this dual-agonist stack safely in 2026.
Guides 2 min read
Tesamorelin Half-Life in 2026: What the Data Actually Shows
Tesamorelin's half-life ranges from 8 to 38 minutes depending on dose, formulation, and population. Here's what FDA data really says.
Guides 8 min read
Tesamorelin Ipamorelin Dosage: A 2026 Dosing Guide
Learn how tesamorelin and ipamorelin dosing works, typical ranges, timing, and how to track your protocol accurately in 2026.
Guides 10 min read
Peptide Reconstitution Calculator: 2026 Dosing Guide
Learn how a peptide reconstitution calculator works, the mg/mL formula, syringe units, and safety pitfalls to avoid before your next dose in 2026.
Guides 15 min read
CJC-1295 & Ipamorelin Dosing Guide: What the Data Shows
A clear, data-driven look at CJC-1295 and ipamorelin dosing ranges, frequency, cycle length, safety, and legal status — based on 2026 research and FDA filings.
Guides 15 min read
Peptide Calculator 2026: How to Dose and Reconstitute
Learn how a peptide calculator works in 2026 — reconstitution math, syringe units, vial sizes, and weight-based dosing explained clearly.
Guides 15 min read
Medication Tracker Template: Complete Guide
Compare medication tracker templates—PDFs, spreadsheets, apps—to find the best format for managing doses, cycles, and symptoms effectively.
Guides 17 min read
How to Schedule TRT Injections: A Step-by-Step Guide
Master TRT injection scheduling: choose esters, set frequency, rotate sites, track doses, and optimize your testosterone replacement therapy protocol.
Guides 15 min read
What Is a GLP-1 Tracker? A Complete Guide
Learn what a GLP-1 tracker is, key features to look for, and whether it's right for managing semaglutide, tirzepatide, or compounded GLP-1 medications.
Guides 15 min read
Manage Multiple Peptide Cycles: A Complete System
Learn to manage peptide stacks safely with proven systems for protocol design, timing, site rotation, lab testing, and digital tracking.
Guides 15 min read
How to Track Peptide Doses: A Step-by-Step Guide
Learn to track peptide doses accurately with apps, calculators, injection logs, site rotation, inventory management, and data analysis.
Guides 15 min read
What Is a Medication Tracker? A Complete Guide
Discover medication trackers: dose reminders, inventory management, privacy, and why specialized apps beat spreadsheets for peptides, TRT, and GLP-1 protocols.
Guides 16 min read
What Are GLP-1 Medications? A Complete Guide
GLP-1 medications like Ozempic and Wegovy treat diabetes and obesity. Learn how they work, FDA brands, side effects, costs, and tracking tools.
Peptides 4 min read
Understanding BPC-157: Dosing, Benefits, and Protocol Guide
A comprehensive guide to BPC-157 peptide dosing protocols, reconstitution, and what to expect during your first cycle.
Guides 5 min read
How to Properly Reconstitute Peptides: A Step-by-Step Guide
Learn the correct technique for reconstituting lyophilized peptides with bacteriostatic water, including concentration calculations and storage tips.
TRT 5 min read
TRT Protocol Tracking: Why Consistency Matters More Than You Think
How tracking your testosterone replacement therapy protocol improves outcomes, helps optimize dosing, and gives you data to share with your provider.