Metal content of earring fishooks, necklace and bracelet clasps, and beads used in my designs will be specified in description of pieces. Silvertone, Coppertone, and Goldtone are metals that I cannot guarantee their content as to allergies. Silver and Gold plated are a better quality metal and will be in the descriptions as Silver, 14K Gold and Rose Gold. Stainless Steel is an alternative to Silver that can be substituted if you have allergies. Please let me know and I will accommodate your request at no additional charge.