An optical bench in a warm, lit laboratory, a beam of light passing along its rail through a lens in a brass holder.

The Science

Three pages on the science behind your lenses, written to be quotable and graded claim by claim — including where the honest grade costs us a sale. Every significant claim carries an evidence mark, and the research pages end with their references.

Established
Replicated across decades of research; no serious scientific dispute.
Supported
Real evidence exists, but it is partial, modest, or context-dependent.
Unproven
Widely claimed in marketing; not demonstrated by good research. We say so.

What the series actually grades

Counted from the marks on the pages themselves, not graded again here. The unproven marks are the ones worth reading first: they are where the evidence does not support a claim we would benefit from.