Advertising cookies are optional and are off by default.
When advertising measurement is enabled by VialTests configuration, a Meta Pixel may load only after you affirmatively allow Advertising cookies (Accept All, or Preferences with Advertising enabled). Measurement is limited to selected public marketing pages.
The Meta Pixel is not loaded on checkout, payment, private order, Client Portal, Affiliate Portal, laboratory, internal administrative, or Certificate of Analysis verification pages.
VialTests does not intentionally configure the Meta Pixel to send customer names, email addresses, phone numbers, hashed contact identifiers, peptide or analyte names, purchased testing-service details, laboratory results, Certificates of Analysis, verification tokens, order line items, free-form customer notes, cryptocurrency wallet addresses, or private portal information.
Automatic advanced matching and unrestricted product-metadata sharing are not used for this integration. Meta Purchase conversion events remain separately controlled and are not enabled solely by accepting Advertising cookies.