# PeptideGuide

> Clear, honest answers about peptides


## Pages

- [Know Before You Choose](https://peptideguide.fit/compare/): Browse peptides by goal, like focus, energy or recovery, and compare evidence, side effects and FDA status side by side.
- [Privacy Policy](https://peptideguide.fit/privacy-policy/): What information PeptideGuide collects, how we use it, and your choices.
- [Glossary](https://peptideguide.fit/glossary/): Plain language definitions of 50+ peptide terms, from HPLC and net peptide content to 503A, Category 2, Phase 3 trials and U-100 syringes.
- [Peptide blends explained](https://peptideguide.fit/guides/peptide-blends-explained/): Why seller blends like BPC-157 with TB-500, GLOW, KLOW and CJC-1295 with ipamorelin lack human data, and how mixing affects stability and testing.
- [Purity vs content explained](https://peptideguide.fit/guides/purity-vs-content-explained/): Why a 99% pure peptide vial can hold less peptide than the label says, plus the units versus milliliters mix up behind FDA dosing alerts.
- [Animal study vs human trial explained](https://peptideguide.fit/guides/animal-study-vs-human-trial/): Clinical trial phases, why most animal results never reach patients, and how to tell a mouse study from a real human trial in a headline.
- [What "research use only" means](https://peptideguide.fit/guides/what-research-use-only-means/): What a research use only label means legally, why it is not a safety stamp, and how FDA treats RUO peptides sold for human use.
- [Red flags of scam peptide sellers](https://peptideguide.fit/guides/red-flags-of-scam-peptide-sellers/): Eight warning signs of risky online peptide sellers, drawn from FDA warning letters, FTC advice and lab tests of products bought online.
- [How to read a Certificate of Analysis](https://peptideguide.fit/guides/how-to-read-a-certificate-of-analysis/): What a peptide CoA shows and hides: HPLC purity, mass spec identity, batch numbers, signs of fakes, and the tests most CoAs skip.
- [Medical Disclaimer](https://peptideguide.fit/medical-disclaimer/): PeptideGuide is educational information only and is not medical advice.
- [Terms of Use](https://peptideguide.fit/terms-of-use/): The terms for using peptideguide.fit.
- [Contact](https://peptideguide.fit/contact/): Send PeptideGuide a correction, a newer study, or a question about a page.
- [About](https://peptideguide.fit/about/): Why PeptideGuide exists, how we write and source each page, and what we will never do.
- [Syringe unit converter](https://peptideguide.fit/guides/syringe-unit-converter/): Check the math on a prescribed dose: convert mg to units on a U-100 syringe and avoid the units versus mL mistake.
- [Guides](https://peptideguide.fit/guides/): Short, sourced guides on reading lab reports, spotting scam sellers, research use only labels and judging studies.
- [Compound Library](https://peptideguide.fit/compounds/): Browse plain language pages on 106 peptides and related compounds, each with sourced research, risks and regulatory status.
- [Home](https://peptideguide.fit/): No products. No affiliate links. Every claim sourced.


[comment]: # (Generated by Hostinger Tools Plugin)