White gold earrings have become increasingly popular in recent years, but many people question whether or not they are hypoallergenic. Hypoallergenic means that a material is less likely to cause an allergic reaction. While gold itself is not a common allergen, white gold contains additional metals such as nickel or palladium, which can potentially trigger allergies in some individuals. Some manufacturers use a mix of metals that may include nickel, which is known to cause allergic reactions in certain people.