CK One by Calvin Klein is a Citrus Aromatic fragrance for women and men. CK One was launched in 1994. CK One was created by Alberto Morillas and Harry Fremont.
- Top notes: Pineapple, green notes, mandarin orange, papaya, bergamot, cardamom and lemon.
- Middle notes: Nutmeg, violet, orris root, jasmine, lily-of-the-valley and rose.
- Base notes: Sandalwood, amber, musk, cedar and oakmoss.