CK One is an iconic unisex fragrance, with a Citrus Aromatic scent. The fragrance was created by perfuming greats Alberto Morillas and Harry Fremont and launched in 1994 by Calvin Klein. The fragrance contains top notes of Lemon, Green Notes, Bergamot, Pineapple, Mandarin Orange, Cardamom and Papaya; heart notes of Lily-of-the-Valley, Jasmine, Violet, Nutmeg, Rose, Orris Root and Freesia; in the base of the fragrance are notes of Green Accord, Musk, Cedar, Sandalwood, Oakmoss, Green Tea and Amber. The fragrance. The scent is clean, fresh, and has Citrus and green notes poking out making it ideal for the warmer weather of Spring and Summer.