Billie
Billie's marketing is built on aesthetics and "clean" self-care, but structurally its razor is a conventional cartridge system - a plastic handle and plastic five-blade cartridges with a moisture strip, essentially a restyled Venus. The look is the differentiator; the materials are the plastic default.
How clear are their specs?
Sells on branding and skin-care claims and does not disclose the plastics in its handle or cartridges.
Products to avoid
Documented so you know what to skip — each still has a full breakdown and sources.