Titanium: Known for its biocompatibility, titanium is often used in medical implants and is unlikely to cause allergic reactions.
Stainless Steel: High-quality stainless steel, particularly surgical-grade stainless steel, is hypoallergenic and resistant to rust, tarnish, and corrosion.
Niobium: Another biocompatible metal, niobium is often used in hypoallergenic jewelry, especially for those with sensitive skin.
Platinum: Although expensive, platinum is hypoallergenic and suitable for those with sensitive skin.
Fine Silver: Pure silver (99.9% silver) is less likely to cause allergic reactions compared to sterling silver, which contains other metals.
18K or 24K Gold: Higher karat gold (75% gold or more) is less likely to contain nickel or other metals that can cause allergic reactions.
Tantalum: Like titanium and niobium, tantalum is biocompatible and suitable for hypoallergenic jewelry.
Copper with a Protective Coating: Copper can sometimes cause reactions, but when coated with a protective layer, it can be suitable for hypoallergenic jewelry.
Always ensure that the jewelry is labeled as hypoallergenic and, if possible, choose pieces made with pure metals or alloys known for their hypoallergenic properties.