Legal

Medical Disclaimer

Last updated August 2026

Nettle is a calculation, logging, and reference tool — not medical advice, and not a source for obtaining peptides. Please read this page in full before using the app.
Not for emergencies. This app is not for use in a medical emergency. If you are experiencing a medical emergency, call 911 (or your local emergency number) immediately.

Not Medical Advice

This app is a calculation, logging, and reference tool. It is not a substitute for professional medical advice, diagnosis, or treatment. Nothing in this app — including dosing calculations, reminders, library content, or weight-tracking trends — constitutes a recommendation that you take, adjust, start, or stop any medication or compound.

Always seek the advice of a physician, pharmacist, or other qualified health provider with any questions you have regarding a medical condition, a prescribed medication, or any substance discussed in this app. Never disregard professional medical advice or delay seeking it because of something you read or calculated in this app.

About the Calculations

The reconstitution and dosing math in this app performs unit conversion and arithmetic based on numbers you enter (vial strength, desired dose, etc.). It does not know your medical history, does not verify that a dose is appropriate for you, and does not replace the dosing instructions given to you by your prescriber or pharmacist.

You are responsible for independently verifying all calculated values — including water volume, draw volume, and unit markings — before drawing up or administering any dose. If a calculated result seems inconsistent with what your provider has told you, stop and check with your provider before proceeding.

Compound Status Varies

This app references compounds with different regulatory statuses, and that status can change over time:

  • FDA-approved medications (e.g., tirzepatide, semaglutide) are approved in specific branded, prefilled formats. FDA approval of the medication does not extend to compounded or vial-based versions, which are typically prepared under different regulatory pathways. The app's calculator supports vial-based reconstitution regardless of a compound's approval status — approval status is not a statement about the legality or safety of any particular product you may be using.
  • Investigational and research compounds (e.g., retatrutide, BPC-157, TB-500, and others in the library) have not been approved by the FDA for human use. Information about these compounds reflects published research findings, not clinical guidance, and is not an endorsement of their use.

Regulatory status is subject to change, and the library aims to reflect current status but may not always be fully current. Confirm the legal and regulatory status of any compound with your own research or provider before use.

No Doctor-Patient Relationship

Using this app does not create a doctor-patient, pharmacist-patient, or other clinical relationship between you and the app's developers.

Weight Tracking

Weight trends shown in this app are for your own awareness and for conversations with your healthcare provider. They are not a basis for dosing decisions, and the app does not use your weight data to suggest, adjust, or recommend any dose.

No Warranty

This app is provided "as is." While reasonable care is taken to keep calculations accurate and library content sourced from peer-reviewed research, the developers make no warranty as to the accuracy, completeness, or reliability of any content, and disclaim liability to the fullest extent permitted by law for outcomes related to your use of this app.