📖Complete GuideUpdated 2026🔬Evidence-Based

How to Read Janoshik Lab Reports for Peptides

Complete Guide & Evidence (2026)

Learn how to read a third-party peptide lab report by checking identity, purity, quantity, and traceability.

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ACTIVE MEDICATIONS
TirzepatideB12
TIRZEPATIDE
🔥 14
2
days away
Thursday · 7.5mg
Medication Supply
Tirzepatide
6.2 / 10 mg · Vial
~42 days left · Mar 15
B12
4.4 / 5 ml · Vial
~88 days left · May 8
Retatrutide
1.2 / 5 mg · Vial
~6 days left · refill soon
Medication Levels
7 Days2 Weeks1 Month90 Days
CURRENT LEVEL
5.42mg
Mar 6
Today
ACTIVE MEDICATIONS
TirzepatideRetatrutide
0mg2.7mg5.4mg
18
Total Injections
💉 All time
122/78
Average BP
🩺 mmHg
8.4
Avg Mood
😊 /10
Health Chart
1mAll
218.6lb
↓ 8.4 lb · 3.7%
WeightInjectionsBPMood
2282222162102277.5mg7.5mg4mg10mg218
Feb 6Feb 14Feb 22Mar 2Today
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12 photos · 2w streak
Week 1
Week 7
Today
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Weight
Due today
Mood
Done
Blood Pressure
Tomorrow
Body Measurements
In 3 days
Dashboard
Your complete health overview in one place
🔥
14-day streak
Logged 18 of 18 scheduled shots
Next Shot Reminder
ACTIVE MEDICATIONS
TirzepatideB12
TIRZEPATIDE
🔥 14
2
days away
Thursday · 7.5mg
Medication Supply
Tirzepatide
6.2 / 10 mg · Vial
~42 days left · Mar 15
B12
4.4 / 5 ml · Vial
~88 days left · May 8
Retatrutide
1.2 / 5 mg · Vial
~6 days left · refill soon
Medication Levels
7 Days2 Weeks1 Month90 Days
CURRENT LEVEL
5.42mg
Mar 6
Today
ACTIVE MEDICATIONS
TirzepatideRetatrutide
0mg2.7mg5.4mg
18
Total Injections
💉 All time
122/78
Average BP
🩺 mmHg
8.4
Avg Mood
😊 /10
Health Chart
1mAll
218.6lb
↓ 8.4 lb · 3.7%
WeightInjectionsBPMood
2282222162102277.5mg7.5mg4mg10mg218
Feb 6Feb 14Feb 22Mar 2Today
Photos
12 photos · 2w streak
Week 1
Week 7
Today
Scheduled Reminders
Weight
Due today
Mood
Done
Blood Pressure
Tomorrow
Body Measurements
In 3 days
🔬 Live Lab Calculator

Tested Vial Dose Adjuster

Enter your Janoshik (or other lab) results to find out the exact active peptide in your vial and adjust your syringe draw accordingly.

True Net Content

📄 Verify Report

Calculate actual active peptide based on mass and purity.

mg
mg
%
True Active Peptide:11.14 mg
⚠️ Overdosed by +11.4% from label claim.
Sample Report
165694-Retatrutide_30mg_Y36K4KG98CAG

Click the image to view the verifiable report on Janoshik's official website.

Save your lab results to your vials in Shotlee.

Stop re-doing the math. In the free Shotlee app, you can attach Janoshik lab results directly to your logged vials. The app will automatically adjust all your future doses and unit calculations based on the tested purity and quantity.

01BACKGROUND

What a Lab Report Can Tell You

A third-party report can help you compare the stated identity of a material against the measured sample, but it only means something when the lot number, method, and units are clearly documented.

Use the report as a verification tool, not as a blanket safety guarantee. The most useful reports tell you exactly what was tested, how it was tested, and whether the result matches the vial or batch you received.

02WHAT TO TRACK

Key Components of a Report

01
🔬
HPLC / Chromatography
Chromatography helps separate the sample into components so you can inspect whether the lot appears clean or contains extra peaks and impurities.
02
🔬
Mass Spectrometry
Mass spectrometry helps confirm whether the measured material matches the claimed analyte by its mass pattern.
03
🔬
Quantity and Lot Match
Check that the amount, lot, and report date all match the exact vial or batch in your hand.
03OVERVIEW

How to Use the Report Responsibly

Identity First

Start with whether the report actually matches the claimed compound before you look at the rest of the numbers.

Purity Context

Treat purity as one data point, not the whole story. The method and sample quality matter too.

Documentation Matters

Keep the report, lot number, and any packaging details together so you can compare batches later.

Use Caution with Claims

If a report is missing methods, batch identifiers, or clear units, treat it as incomplete rather than definitive.

Track What You Actually Received

Log the batch details and date in Shotlee so you can match any future report to the right vial.

Ask for Better Documentation

If a seller cannot explain the report, stop and ask for the full documentation before relying on it.

04FAQ

Guide FAQs

Janoshik Analytical is an independent third-party lab widely used to test peptide identity, purity, and quantity. A Janoshik report (COA) lets you verify a batch before you trust it.

Check three things: identity (the measured mass matches the expected molecule), purity (the percentage that is the target peptide, often 95%+), and quantity (actual mg vs the labeled amount). A good report shows the right molecule, high purity, and content close to the label.

Use the report’s unique order/verification code on Janoshik’s official verify page and confirm the peptide, batch, date, and values match what you were shown. Screenshots can be edited; the verification portal cannot. No verifiable code means the report is unverified.

Janoshik is a widely used independent analytical lab for peptide testing. A report is only meaningful if it has a verifiable code, matches your exact batch, and documents the method and units — always verify the code rather than trusting a screenshot.

Typically identity (mass spectrometry), purity (HPLC %), and quantity (actual mg). Some reports add sterility or endotoxin testing. It reflects the tested sample, not necessarily every vial in a batch.

Yes. Shotlee logs your doses, batches, lab results, side effects, and weight in one place — free to use.

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📚References & sources

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