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It seems like you're looking for information about Zen Nails & Spa in Carmel, IN. Unfortunately, the search results provided do not contain specific details about the ingredients or materials used at Zen Nails & Spa. The results mainly include information about the services offered, customer reviews, and the salon's address. If you need information about the ingredients or materials used for the nail services at Zen Nails & Spa, I recommend visiting their official website or contacting them directly for the most accurate information.