CPT will be closed on Friday, July 3, 2026, in observance of Independence Day.
Repeated Insult Patch Test
If you are eligible for the study and you choose to participate, you will:
The Repeated Insult Patch Test (RIPT) Back Study is a two-part test.
Part 1 involves the application of patches (bandages), with products on them, to your back three times a week for 3 weeks, which is followed by a rest period (where no patches are applied). Your skin is examined for responses to the patches after each removal.
Part 2 involves applying the same patches to a different area of skin and looking at the skin responses over 3 or 4 days.
You’ll be given instructions about patch removal and when to report to the Test Facility, when you enroll.
We are currently recruiting males and females ages 18 to 70 for our RIPT studies. New patch studies start on Mondays and Wednesdays!
Challenge dates are subject to change.
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
Join CPT℠ Labs on November 19 at 1 PM EST for a practical guide to designing cosmetic efficacy studies, covering instrumentation, study design and statistics.