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LynkDose Blog

The Peptide Tracking Blog

Practical, no-hype guides on tracking peptide cycles, reconstitution and dosing, and getting real results from your protocol.

News & Regulatory

Why the Dose Calculator Left the LynkDose App (and Where to Find It Now)

Apple required us to take the dose calculator out of the LynkDose app. It is not gone, though: the full calculator is still free on our website.

October 16, 2026·3 min read

Peptide Tracking

Peptide Cycle Length: How Long On, How Long Off?

There is no universal number for how long to run a peptide or how long to break. Here is the honest framework for thinking about cycle length — and how to track one so you actually know what you ran.

October 12, 2026·6 min read

Peptide Tracking

How to Track a Retatrutide or Tirzepatide Microdose

At microdose volumes, a rounding error that would not matter at a standard dose can be 10-20% of the whole thing. Here is what to log, and why precision matters more, not less.

October 5, 2026·5 min read

Peptide Tracker Apps

Shotsy vs a Compounded-Peptide Tracker: Which Do You Need?

Shotsy is excellent at what it was built for — prescription GLP-1 pens. Reconstituted, compounded peptides from a vial are a different tracking problem. Here is how to tell which one you actually have.

September 28, 2026·4 min read

Peptide Tracking

How to Track Peptides with Apple Health

Your iPhone already records HRV, sleep, weight and resting heart rate. Here is how to connect that data to your peptide doses instead of letting the two live apart.

September 21, 2026·5 min read

Peptide Tracking

How to Store Peptides (and How Long They Last)

Lyophilized powder and reconstituted liquid have very different shelf lives — and different rules. Here is how to store both correctly, and how to tell when a vial has gone bad.

September 14, 2026·5 min read

Peptide Tracking

How to Read an Insulin Syringe for Peptide Doses

The lines on an insulin syringe measure volume, not drug — units only mean a dose once you know your concentration. Here is how to read one correctly.

September 7, 2026·4 min read
A smartphone with a green-accented peptide tracking dashboard beside a clear glass vial

Peptide Tracker Apps

Is There a Peptide Tracker App for Android?

The honest state of peptide tracking on Android in 2026 — and what you can use right now, including a free reconstitution calculator that runs in any browser.

August 31, 2026·2 min read
A glowing blue wireframe torso marked with injection-site rotation points beside a syringe

Peptide Tracking

Peptide Injection Site Rotation: A Practical Guide

A simple, repeatable rotation system for subcutaneous peptide injections — and how to actually keep track of where you last went so you avoid irritation.

August 29, 2026·3 min read
A glowing upward trend line and analytics ring floating above a clear glass peptide vial

Peptide Tracking

How to Tell if a Peptide Is Actually Working

Judging a peptide by how you feel today is how you get fooled. A practical framework for measuring whether it is actually working — and reading a stack apart.

August 27, 2026·3 min read
Three smartphones side by side showing glowing blue peptide tracking dashboards beside clear glass vials

Peptide Tracker Apps

LynkDose vs PeptideKit vs The Peptide App: An Honest Comparison (2026)

Four capable iPhone trackers, compared honestly on features, price, and ratings — plus a plain decision guide for which one fits how you actually run your protocol.

August 24, 2026·4 min read
A pill capsule, a glass medical vial and an insulin syringe floating against a dark blue background with glowing data curves

News & Regulatory

New FDA Drug Approvals in 2026: The Full List (Updated July 2026)

The FDA has cleared roughly two dozen novel drugs in 2026 — including the first small-molecule GLP-1 pill. Here is the full list, the approvals that actually matter if you track a metabolic or peptide protocol, and what is still pending.

July 24, 2026·9 min read
A single glass peptide vial standing on a dark podium under a cone of blue light, with a semicircle of empty translucent panel seats behind it

News & Regulatory

FDA Panel Backs BPC-157 and TB-500 — but Rejects Emideltide (DSIP). What It Actually Means

Six of seven peptides cleared the panel — including BPC-157 and TB-500 — overruling the agency's own scientists. Only emideltide was rejected. It is a real shift, but it is not approval, it is not binding, and nothing changes at your pharmacy this week.

July 24, 2026·9 min read
An amber testosterone vial and a syringe in front of a rising blue waveform chart

Peptide Tracker Apps

The Best App to Track TRT and Testosterone Protocols

TRT is a long-term protocol with injections, esters, ancillaries, and bloodwork to keep straight. Here is what a real testosterone tracker should handle — and how to track it privately.

July 7, 2026·3 min read
A translucent glowing price tag floating in front of a phone and a small peptide vial

Peptide Tracker Apps

The Best Free Peptide Tracker Apps in 2026: What's Actually Free

Some peptide trackers are free forever, some have a free tier with a cap, and some are just a trial. Here is which is which — including ours.

July 7, 2026·4 min read
A glowing blue decay curve descending across a dark grid above a small peptide vial

Peptide Basics

Peptide Half-Life Explained: Timing, Frequency & Why It Matters

Half-life is the hidden variable behind every dosing schedule. Understand it and your timing, frequency, and tracking all start to make sense.

June 19, 2026·2 min read
A smartphone showing a glowing blue analytics dashboard floating beside a clear glass peptide vial

Peptide Tracker Apps

The Best Peptide Tracker Apps in 2026: 24 Apps Compared

An honest, verified comparison of 24 peptide tracker apps — real pricing and rating counts, what each does best, and where ours falls short.

June 18, 2026·20 min read
A modern injection pen floating at an angle with a descending blue trend line of light behind it

Protocol Tracking

Tracking GLP-1 Peptides (Semaglutide & Tirzepatide): A Complete Guide

GLP-1 protocols live and die by consistency and titration. Here is exactly what to track each week — and how to tell whether the dose is working.

June 17, 2026·3 min read
A teal-capped glass vial on a glowing platform wrapped in ribbons of blue light

Peptide Guides

TB-500: Dosage, Cycle Length, and How to Track It

What TB-500 is, the loading and maintenance dosing patterns people commonly discuss, how to reconstitute it, and how to track your protocol so you know whether it worked.

June 16, 2026·3 min read
Three clear glass peptide vials in a row connected by thin glowing blue threads of light

Protocol Tracking

How to Build and Track a Peptide Stack

Running more than one peptide multiplies the variables. Here is how to structure a stack and track it so you can actually attribute your results.

June 15, 2026·3 min read
A glowing blue progress ring with tick marks encircling a single clear peptide vial

Protocol Tracking

How to Track a Peptide Cycle: A Complete Guide

A practical, no-hype framework for tracking a peptide cycle from day one — what to log, how often, and how to turn it into insight instead of a messy notes app.

June 12, 2026·5 min read
A peptide vial beside an insulin syringe with a single glowing droplet suspended at the needle tip

Dosing & Reconstitution

Peptide Reconstitution and Dosing: The Complete Guide

How to reconstitute a peptide with bacteriostatic water and calculate the exact amount to draw — the simple math, a worked example, and the tools to get it right every time.

June 11, 2026·5 min read
A reconstituted BPC-157 vial glowing pale blue next to an insulin syringe, with a dotted schedule grid behind

Peptide Guides

BPC-157: Dosage, Cycle Length, and How to Track It

What BPC-157 is, the dosage ranges and cycle lengths people commonly discuss, how to reconstitute it, and — most importantly — how to track your protocol so you know if it worked.

June 10, 2026·4 min read