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Need assistance? Call toll free at (888) 252-6275 to speak with Customer Service(International, please dial (616) 971-3204). Fax: (616) 971-3208

Hours of Operation (Eastern Standard Time):

  • Monday: 8:30 AM to 3:30 PM
  • Tuesday: 8:30 AM to 3:30 PM
  • Wednesday: 8:30 AM to 3:30 PM
  • Thursday: 8:30 AM to 3:30 PM
  • Friday: Closed
  • Saturday: Closed
  • Sunday: Closed

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Jamark Laboratories, Inc
4282 Brockton Dr SE, Ste D
Grand Rapids, MI 49512

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