The production of fragrance twins is based on recreating the composition of a well-known perfume without copying the original formula exactly. First, the original scent is analyzed to determine the notes it contains and their intensity. Perfumers and chemists use special analytical methods such as gas chromatography–mass spectrometry (GC-MS) to decode the perfume’s chemical composition.
After the analysis, the most important fragrance components are identified and recreated in a new blend using similar or identical aroma molecules. Both synthetic and natural fragrance materials are used to achieve the desired structure. Since some high-quality raw materials in designer perfumes are very expensive, fragrance twins often use more affordable alternatives that have a similar olfactory effect.
The production process involves several steps, including diluting the fragrance oils with alcohol, allowing the mixture to mature to ensure optimal fragrance development, and quality control to assess the similarity to the original. Although scent twins can come very close to the original, they often differ in depth, longevity and how they develop on the skin, since the exact formula of a perfume usually remains a well-kept secret. Ultimately, this results in a more affordable alternative that imitates the fragrance experience of a well-known perfume without being an exact copy.