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Introducing Saturation Tracking: Visualise Your Testosterone Levels Over Time

July 14, 2025
4 min read
TRT Monitor Team

TRT Monitor now includes saturation tracking to help you visualise how your testosterone builds up and decays in your system, optimising your injection timing and dosing protocol.


We're excited to announce a powerful new feature that takes TRT tracking to the next level: Saturation Tracking. This advanced visualisation tool helps you understand exactly how your testosterone levels fluctuate over time, giving you the insights needed to optimise your protocol.

What is Saturation Tracking?

Saturation tracking shows you how your testosterone medication builds up and decays in your system based on your actual doses and injection timing. Unlike static blood test results that only show snapshots, saturation tracking provides a continuous view of your estimated hormone levels.

This feature is particularly valuable for men on self-managed TRT protocols who want to:

  • Optimise injection timing by seeing when levels peak and drop
  • Understand dose impact by visualising how different amounts affect overall levels
  • Identify patterns that might explain mood swings, energy crashes, or other symptoms
  • Make data-driven adjustments to their protocol

Saturation Tracking

How to Access Saturation Tracking

Getting started with saturation tracking is simple. Navigate to your insights section and select "Saturation Tracking":

The feature is currently available for testosterone medications and uses your logged doses to calculate estimated saturation levels based on each compound's half-life.

How to Edit a Previous Medication to Add Tracking

If you've previously added testosterone all you need to do is:

  1. Edit your medication
  2. Click the back button at the top left on the edit medication form
  3. Select Testosterone
  4. Fill out the additional details

See the images below for a visual representation

Step 1: Step 1

Step 2: Step 2

Step 3: Step 3

Understanding Your Saturation Chart

Once you're in the saturation tracking view, you'll see a comprehensive chart that shows:

  • Historical data (blue solid line) showing how your levels have changed based on past doses
  • Future projections (purple dashed line) estimating how current levels will decay
  • Dose markers (green bars) showing when and how much you injected
  • Multiple time ranges from 30 to 60 days for both historical and projected data

Key Benefits for TRT Management

1. Optimise Injection Frequency

Many men struggle with finding the right injection schedule. Saturation tracking helps you see exactly when your levels drop, allowing you to time injections for more stable hormone levels.

2. Understand Symptom Patterns

By correlating your saturation chart with how you feel, you can identify if symptoms like fatigue, mood changes, or low libido coincide with hormone level dips.

3. Make Informed Protocol Changes

Whether you're considering switching from weekly to twice-weekly injections, or adjusting your dose, saturation tracking provides the data to make informed decisions.

4. Better Doctor Conversations

Bring concrete data to your healthcare provider showing exactly how your current protocol affects your hormone levels over time.

Getting Started

To use saturation tracking, you'll need:

  1. A testosterone medication added to your profile
  2. Logged doses to generate the saturation data
  3. Concentration information (mg/ml) for accurate calculations

The feature automatically calculates saturation based on your medication's half-life and your actual injection timing, giving you personalised insights into your specific protocol.

What's Next

Saturation tracking is just the beginning. We're continuously working to add more advanced features that help you optimise your TRT journey. Currently, the feature supports testosterone medications, with plans to expand to other compounds in the future.

Try It Today

Saturation tracking is available now for all TRT Monitor users. If you haven't started tracking your TRT yet, sign up today and begin building the data you need for better hormone management.

Have questions about saturation tracking or suggestions for improvements? We'd love to hear from you. This feature represents our commitment to providing the most advanced TRT tracking tools available.


Ready to take control of your TRT protocol? Start tracking your testosterone therapy with precision and get the insights you need to optimise your treatment.

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