If skin turns red and itchy after wearing silver jewelry, the cause is almost never 925 silver itself. 925 sterling silver is stable and low-allergenic, but nickel in cheap alloys and thin plating can release nickel ions onto the skin and trigger contact dermatitis. You can often tell a nickel reaction by the location and timing of the rash.
Nickel is one of the most common contact allergens, and roughly one in ten people is sensitive to it. EU REACH rules limit nickel release from long-term skin-contact metal items to 0.5 microgram per square centimeter per week. Low-cost silver-look pieces are often made of brass or zinc alloy plated with a thin silver layer. Once the plating wears, the underlying nickel touches the skin. White rhodium or rose gold plating baths may also contain nickel. Sweat, especially in summer, accelerates ion release and worsens the rash. Typical symptoms are red patches, bumps, and itching exactly where the metal touches the skin, fading within days once the piece is removed. If a reaction has already happened, stop wearing the piece and see a dermatologist rather than applying more cosmetics over the rash.
MASCOT Jewelry produces 925 silver jewelry with nickel-free plating that meets REACH nickel-release standards, and supports OEM and ODM customization. Contact us for test reports and samples of hypoallergenic silver jewelry.