Based on the search results, it is unclear whether Aura Fragrance is a legitimate product or not. Some people on Reddit and Basenotes Forum claim that the site sells authentic products. However, others have raised concerns about the possibility of fake products being sold. It is important to note that Aura Fragrance is not a specific fragrance, but rather a brand that sells a variety of fragrances. Therefore, it is difficult to provide specific information about the ingredients or materials used in their products without knowing which fragrance is being referred to.