Pandora constructs its silver pieces from hypoallergenic 925 silver, an alloy composed of 92.5% pure silver and 7.5% copper. The copper provides rigidity, as pure silver is far too ductile for jewelry clasps. Copper reacts inevitably with atmospheric sulfur and moisture, causing surface oxidation.
During our sweat tests, acidity produced light discoloration within three weeks of intense workouts. Chlorine exposure in swimming pools accelerated oxidation dramatically, turning bright silver into a dull pewter grey within 48 hours. Proper tarnish resistance and care demands consistent handling:
- Remove sterling silver before swimming in chlorinated pools or soaking in sulfur-heavy hot springs.
- Never clean oxidized Pandora pieces with abrasive chemical dips, which strip intentional antique detailing in the recesses.
- Use a dual-sided micro-abrasive polishing cloth to rub away surface copper sulfide deposits without scratching the base metal.
- Store unused bracelets in airtight, low-humidity zip pouches rather than exposed dresser trays.
