CPT will be closed on Friday, July 3, 2026, in observance of Independence Day.
14 Day Cumulative Patch Test
If you are eligible for the study and you choose to participate, you will:
The Cumulative Irritation Test (CIT) is a longer trial to measure irritation response to a test product – and changes in that response – over time. Patches of the product are applied to the skin and then are replaced daily (except weekend days) through the course of the trial, usually five, 14, or 21 days. Evaluators observe, grade, and record any signs of irritation daily during the trial period. A final reading is taken the last day of patch removal. The goal of the CIT is to quantitate the irritation potential of the product.
An additional “challenge” phase can be conducted after the CIT, usually two to three weeks after completion. In this challenge phase, the product is introduced to a previously untested site to determine whether sensitization has occurred. The goal of this phase is to evaluate the potential for sensitization.
70 New Dutch Lane, Fairfield, NJ
973-359-5879
Monday - Thursday: 7:30AM - 7:30PM
Friday: 7:30AM - 7:00PM
Receive a $40 finder's fee when a friend or relative completes an RIPT BACK STUDY as their first study