Catalyst Cologne is a fresh and exciting fragrance that will stay close to your skin and make sure your presence will always spark a reaction from the ones around you. Introduced in 1994 by Halston, it is a distinctive blend of top orange, caraway, tuberose, vodka and basil, with middle notes of nutmeg, bay leaf, chamomile and black currant, all perfectly balanced out by a base of labdanum, leather, amber and patchouli. Light, discreet and refined, Catalyst is recommended for daytime and casual wear. . . Launched by the design house of Halston in 1994, CATALYST cologne is classified as a sharp, oriental, woody fragrance. This masculine scent possesses a blend of lavender and mint blended with spice and lower notes of citrus.