CK One by Calvin Klein is a Citrus Aromatic fragrance for women and men. CK One was launched in 1994. Top notes are pineapple, green notes, mandarin orange, papaya, bergamot, cardamom and lemon; middle notes are nutmeg, violet, orris root, jasmine, lily-of-the-valley and rose; base notes are sandalwood, amber, musk, cedar and oakmoss.