What this site stores
The comparison tool uses local storage, not an advertising cookie, to remember up to four selected product identifiers. The storage key is strand-comparison. A selection is saved only when you use the comparison feature, and it remains until you clear it or remove site data.
The publisher has not installed advertising, remarketing or analytics cookies. The hosting service may use its own necessary technology for security or private-site sign-in.
How to clear a comparison
Use Clear in the comparison tray or Clear comparison on the comparison page. You can also remove this site’s saved data in your browser settings. If storage is unavailable, the tool still works during the current page session.
Filtering, journal searches and calculator entries are processed on the current page and are not saved for a later visit. No consent banner is used to imply that undisclosed advertising technology is active.
When you leave the site
Brands and research sites linked from this publication have their own storage and privacy practices. If approved affiliate tracking is added later, the relevant disclosure will explain its role. This page describes the current configuration, checked on 14 September 2026.