CK One, launched in 1994, is a Citrus Aromatic fragrance for both men and women by Calvin Klein. Perfect for Spring and Summer, this fragrance is worn during the day. Created by Alberto Morillas and Harry Fremont, this fragrance contains top notes of Lemon, Green Notes, Bergamot, Mandarin Orange, Pineapple, Cardamom and Papaya. Middle notes of this fragrance are Lily-of-the-Valley, Jasmine, Violet, Rose, Nutmeg, Orris Root and Freesia with base notes of Green Accord, Musk, Cedar, Sandalwood, Oakmoss, Green Tea and Amber.