Fragrance is a combination of organic compounds that produces a distinct smell or odor, and perfumes are liquid mixtures used to emit a pleasant odor. They are found in a wide range of products, including cosmetics, toiletries, household goods, and more. Fragrance ingredients are often not disclosed on product labels, and the term "fragrance" or "parfum" on an ingredient list refers to a blend of compounds and chemicals that comprise a product's fragrance. This lack of transparency has raised concerns about potential negative health effects, especially for individuals with allergies or skin sensitivities. Some fragrances are made with synthetic ingredients that can be potentially harmful to the environment, so there is an increasing interest in sustainable perfume options that are free from animal-derived ingredients, cruelty-free, and made with natural and biodegradable materials