CK One by Calvin Klein is a Citrus Aromatic fragrance for women and men. CK One was launched in 1994. Top notes are Lemon, Green Notes, Bergamot, Mandarin Orange, Pineapple, Cardamom and Papaya; middle notes are Lily-of-the-Valley, Jasmine, Violet, Rose, Nutmeg, Freesia and Orris Root; base notes are Green Accord, Musk, Cedar, Green Tea, Sandalwood, Oakmoss and Amber.