CK One by Calvin Klein is a unisex Citrus Aromatic fragrance. CK One was launched in 1994 by Calvin Klein. CK One was created by Alberto Morillas and Harry Fremont. The top notes are pineapple, green notes, mandarin orange, papaya, bergamot, cardamom, and lemon; the middle notes are nutmeg, violet, orris root, jasmine, lily-of-the-valley, rose, and freesia; base notes are sandalwood, amber, musk, cedar, oakmoss, green tea, and green accord.