Case studies
Real campaigns, real numbers.
Eight seasonal new arrivals, 1,996 applicants, 40 reviews from 40 testers: Marimex tests with Testuj.to for the third season
Every spring and autumn, Marimex launches new pool and garden products that no one knows yet and no one has written about. Across three seasons (2024–2026), eight testing campaigns took place: 1,996 completed questionnaires, 40 selected testers, and 40 published reviews — a 100% response rate, 4.5 out of 5 average rating, and 114 photos.
Read more — Eight seasonal new arrivals, 1,996 applicants, 40 reviews from 40 testers: Marimex tests with Testuj.to for the third season
Three countries in one wave: Bloom Robbins generated 843 published reviews for two products
Bloom Robbins needed to launch two hair care products across three markets simultaneously. Six campaigns took place in a single wave: 7,971 completed questionnaires, 281 reviews from 281 testers, and 843 published reviews on Testuj.to, the Heureka Group network, and the client's e-shops.
Read more — Three countries in one wave: Bloom Robbins generated 843 published reviews for two products
27 products, 21,135 applications, 443 reviews: L'Oréal Paris tested its entire portfolio from mascaras to men's care
Pharmacy chain Dr.Max needed reviews for 27 L'Oréal Paris products across four categories all at once. Over six weeks, 27 campaigns took place: 21,135 applications, 456 selected testers, and 443 published reviews with an average rating of 4.6 out of 5.
Read more — 27 products, 21,135 applications, 443 reviews: L'Oréal Paris tested its entire portfolio from mascaras to men's care
Sixteen products in nine months: Epico has 255 published reviews and knows which model overheats
Epico launches new accessories in dozens of variants, and each needs its own reviews. Over nine months, 16 campaigns took place: 1,988 completed questionnaires, 80 reviews from 80 testers, a 100% response rate — and data that revealed which models overheat.
Read more — Sixteen products in nine months: Epico has 255 published reviews and knows which model overheats
30 products, 30 campaigns, one window: Royal Canin collected 828 reviews
Royal Canin needed authentic reviews across its entire dog and cat kibble portfolio. Instead of thirty separate projects, thirty campaigns ran in parallel: 4,535 applications, 879 selected testers and 828 reviews averaging 4.8 out of 5.
Read more — 30 products, 30 campaigns, one window: Royal Canin collected 828 reviews
Five coffee machine models, 250 questionnaires and 104 published reviews: Krups covered four platforms at once
Nobody buys a coffee machine worth hundreds of euros without reading reviews — and the new Krups line had none on its product cards. Brand Testing Club delivered 26 reviews from 26 testers across five models; each one was published on four platforms, 104 placements in total.
Read more — Five coffee machine models, 250 questionnaires and 104 published reviews: Krups covered four platforms at once
100% Stamp: TOPGAL Gained Reviews, a 5 of 5 Rating, and a Wave of Reach on Social Media
School backpack and satchel manufacturer TOPGAL wanted to get authentic reviews for its new models and get them in front of parents and children. The testing campaign delivered not only 18 product reviews but, most importantly, strong organic reach on social media.
Read more — 100% Stamp: TOPGAL Gained Reviews, a 5 of 5 Rating, and a Wave of Reach on Social Media
Brit from VAFO: 21 products, hundreds of testers, and logistics that were timed to the day
Pet food manufacturer VAFO wanted to get authentic reviews for its Brit line of kibble across the entire portfolio. The campaign involved 21 concurrent tests, hundreds of testers, and a logistical challenge – to send out the correct packages the moment the goods arrived at the warehouse.
Read more — Brit from VAFO: 21 products, hundreds of testers, and logistics that were timed to the day
Thousands of answers: Mattel gained reviews and customer insights from testing
Toy company Mattel has been selling Barbie and Fisher-Price since 1945. In the Czech Republic and Slovakia, it is just starting out — it lacked reviews, a website, and an understanding of how local customers think.
Read more — Thousands of answers: Mattel gained reviews and customer insights from testing
How testing helped get reviews for a new Philips product
Philips was launching a new product and wanted to get reviews from a new target group — young men aged 16–18. How did our testing help?
Read more — How testing helped get reviews for a new Philips product
How Pangamin reached a new target group for its product thanks to testing
A traditional dietary supplement made from brewer's yeast wants to appeal to a younger generation. In cooperation with Testuj.to, it is testing the new Pangamin B12, ideal for vegetarians and vegans.
Read more — How Pangamin reached a new target group for its product thanks to testing
97% recommendation rate: testing helped Weleda launch a new product
Weleda's new night cream proved successful abroad, but lacked feedback from the domestic market. How did Testuj.to solve the problem?
Read more — 97% recommendation rate: testing helped Weleda launch a new product
Quality Reviews of a CBD Cream Boosted B2B Sales for the Epiderma Brand
The Epiderma brand is regularly recommended by leading Czech doctors. They found out end-user opinions thanks to testing with Testuj.to.
Read more — Quality Reviews of a CBD Cream Boosted B2B Sales for the Epiderma Brand
Specific target groups of testers for Bioderma products
Bioderma was launching new face serums and needed to get high-quality reviews from relevant target groups.
Read more — Specific target groups of testers for Bioderma products
How Testing Kickstarted the Launch of 7 Vacuum Cleaner Models for Electrolux
Getting reviews for a new product is difficult. By testing with us, Electrolux gained 157 reviews across 5 platforms for 7 new models of stick vacuum cleaners.
Read more — How Testing Kickstarted the Launch of 7 Vacuum Cleaner Models for Electrolux
Experiential Testing of the Brandt Multifunction Oven
Together with ELMAX STORE, the distributor of the Brandt brand for the Czech Republic, we carried out a demonstration event for the Brandt multifunction oven.
Read more — Experiential Testing of the Brandt Multifunction Oven
Testing a food supplement triggered an avalanche of organic reviews and increased brand reach
The brand wanted an objective opinion on its OmegaMarine Forte+ product. We asked the Ženy s.r.o. community, and 92 reviews spoke for themselves.
Read more — Testing a food supplement triggered an avalanche of organic reviews and increased brand reach
The campaign for Bosch was a unique challenge
We tested and collected reviews for two Bosch products — a cordless rotary hammer and a cordless screwdriver.
Read more — The campaign for Bosch was a unique challenge
Campaign for Henkel: A Successful Product Launch That Revived the FA Brand
The key to the campaign's success was linking the brand's traditional values with social media and involving testers who provided authentic feedback.
Read more — Campaign for Henkel: A Successful Product Launch That Revived the FA Brand