Certain metals such as nickel, ทองแดง, chromium and cobalt have been known to cause allergic reactions in individuals. This is not a concern with gold vermeil, as it only generally contains gold and silver.
อย่างไรก็ตาม, if there are materials mixed in the vermeil such as nickel, sellers are required to disclose them. Be extra vigilant in inquiring about the composition of the gold vermeil.