How Peptide Daily Works
Transparent methodology behind every number and rating on this platform.
Medical Disclaimer
Peptide Daily is an informational resource only. We provide price comparison and third-party lab testing data for research purposes. This is not medical advice. Peptides are research chemicals; their safety and efficacy in humans has not been fully established by regulatory agencies. Always consult a qualified healthcare professional before using any peptide or research chemical. Peptide Daily is not responsible for any decisions made based on information on this site.
Data Sources
Vendor prices
We automatically scrape vendor websites every 15 minutes to collect current pricing, product availability, and concentration information. Prices are cached and displayed alongside the timestamp of the last successful update.
Finnrick lab testing data
Finnrick (finnrick.com) is an independent third-party lab testing service that purchases peptides from vendors and tests them for purity, quantity accuracy, identity, and endotoxins. We import Finnrick's published ratings and display them without modification. Peptide Daily is not affiliated with Finnrick.
Community reviews
Registered users can submit reviews for peptides. Reviews represent personal subjective experiences. Peptide Daily moderates reviews to remove spam and policy violations, but does not verify claims made in user reviews. Reviews are not medical testimony.
Finnrick Grade Scale
Finnrick assigns a letter grade (A–E) to each vendor-peptide pair based on the aggregate of all lab tests for that pair. Each test measures purity, quantity variance, identity confirmation, and endotoxin levels.
Great
Excellent purity and quantity accuracy. Top-tier lab results.
Good
Good results with minor inconsistencies across tests.
Okay
Acceptable but inconsistent. Review individual test results.
Poor
Significant lab issues. Exercise caution.
Bad
Major lab failures. Serious quality concerns.
Trust Score (Peptide Daily Metric)
Trust Score is Peptide Daily's own derived metric — it is not Finnrick's rating.
The Trust Score (0–100) is a composite metric we compute from three components for each vendor-peptide pair. It provides a single number for quick comparison but should not be treated as an authoritative quality judgment.
Finnrick Lab Score (weighted ~71% when available)
Derived from Finnrick's numeric test score. When no Finnrick data exists, this component is excluded and the remaining components are reweighted.
Community Review Score (~0–29% weight)
Average star rating from verified community reviews. Weight increases as review count grows; low-review vendors get less weight here.
Pricing Signal (~29% weight when no reviews)
Relative position of this vendor's price within the market. Moderate pricing vs. the median may signal a quality-conscious vendor; extremely low pricing is penalized.
Contact & Feedback
Found a data error, missing vendor, or quality concern? Peptide Daily is a community-driven project. We welcome feedback on data accuracy. Vendor listing requests and Finnrick sync issues should be reported so we can investigate.