In the time it takes your Amazon Prime order to arrive, you may now order a custom perfume. From concept to shelf, a single perfume can take six to 18 months — even longer in luxury. AI isn’t coming to fragrance — it’s already here, and in most things that the average consumer smells. The four fragrance conglomerates responsible for most of what the world smells — DSM-Firmenich, Givaudan, IFF, and Symrise — all integrate AI into their pipelines. The beauty of AI is that it manages regulatory concerns, issues around stability, phasing, performance.