Peptide Signal IQ

What Peptide Signal IQ is#

Peptide Signal IQ publishes source-linked due-diligence profiles of peptide vendors: legal identity and registration, domain history, FDA/FTC and state regulatory history, certificates of analysis and lab verification, and payment and refund policies. Every claim is tied to its evidence, every source is tiered by authority, and the full change history of each profile is public.

We are independent: no affiliate relationships, no pay-to-rank, no sponsored placements. Our revenue comes from paid alerts, newsletters, research reports, and professional data products — never from vendors buying better coverage.

What it is not#

• Not medical advice. Nothing on this site is a recommendation to buy, use, or avoid any product. We provide transparency about vendors, not guidance about substances.
• Not a safety certification. The absence of a flag on a profile is not an endorsement. Our research covers what public records show; it cannot verify what happens in a lab or a warehouse.
• Not an affiliate marketplace. We do not take commissions on sales, and rankings reflect evidence — never payments.

How to use this directory#

Start with the vendor directory, open a profile, and read the evidence. Check the confidence level on each field, follow the source links, and watch the changes feed for material updates. Our research methodology explains how the work is done — and if you find an error, corrections are welcome.