In Home User Testing (IHUT):
Products tested in the natural home environment – recruitment, preparation, logistics, participant support, and post-trial wrap up handled end to end.
Product trials are complex. Your involvement shouldn’t be.
Most product trials involve too many suppliers, too many handoffs, and too many moments where something falls through the gap. Recruitment from one place, logistics from another, participant support from a third and you in the middle, managing all of it.
We fix that by owning the whole thing.
One Team. Every Detail. Start to Finish.
From the moment a brief lands to the moment the last unit is collected and destroyed, Zest runs the entire operation. Recruitment, product handling, blinding, coding, packaging, dispatch, participant support, troubleshooting, returns. One experienced team, one point of contact, zero handoffs.
When a client needed over 20,000 units received, sorted, blinded, coded and packed for dispatch, we built the operation to deliver it, with such accuracy and efficiency that when they ran the same study in another market, they contacted us to understand our process so they could replicate it.
That’s not luck. That’s what happens when one team owns every detail. That team is Zest.
We keep timelines tight, solve problems before they reach your desk, and stay calm when variables change — because in product testing, they always do. You get a trial that runs cleanly, data you can trust, and a team that never needs chasing.
Explore our product testing capabilites:
Central Location Testing (CLT):
Controlled sessions, meticulous product handling, and senior project management on site for every single study.