Recreating CK One in its pre-regulation state was remarkably easy. Will Andrews of Coty tells me “Firmenich had the original formula on file – which was a welcome surprise as computerisation of formulae was uncommon even in the 90s” – a simple case of having the formula weighed and including the now banned materials. Comparing modern CK One side by side with the original, you find the current version to be more citrus and slightly less weighty than the original – which had slightly more warmth and floralcy.
— Nick Gilbert, writing for Basenotes, talks about the perfumes that were recreated for the Somerset House exhibit earlier this year. So CK One was easy, but Coty L'Origan, the subject of his article was not so easy. Read more at Recreating L'Origan.