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When Gen Z decides to buy something, the brand is almost missing from the story of that decision. In our qualitative work, we asked young buyers to walk us back through a real, recent purchase, step by step. The brand's own content set up the wish, but the moment of "yes" happened somewhere the brand had no control: in a video of someone shaped like them using the product, and in the reviews they went to read afterward.
We ran this study with Discurv on a French sample of 18 to 29 year olds. Discurv handled the quantitative side, 501 respondents, and Verso ran around 50 AI-led qualitative interviews for the "why". The two sides pointed at the same thing.
Where Gen Z actually makes the decision
Gen Z uses social platforms to prepare a purchase, not to complete one. In the Verso x Discurv data, 53% use social to discover a brand, 51% to run extra research, and 51% to read reviews and tests. The moment that stands out: 54% use these platforms to save a product to a wishlist, and only 30% buy on the spot.
So the platform where a brand spends most of its budget is mostly a staging area. People collect, compare, and park their intent there. The decision itself matures elsewhere and comes back later.
Signal one: body-projection, "someone shaped like me, using it for real"
The strongest trigger to buy is seeing the product used by an ordinary person with a similar body and a similar life. Our interviews returned this again and again. It was not the model, not the campaign, and not the influencer with a million followers. It was someone close enough that the buyer could picture the product on themselves.
"What moved me from 'this looks nice' to 'I'm buying it' was seeing people with a profile like mine use it in real situations."Man, 18-22, France
This is why polished brand assets often stall at "this looks nice". They show the product, but they do not let the buyer project. A short clip of a normal person in a real setting does the work that a produced campaign cannot.
Signal two: third-party triangulation, the review lap before "yes"
Before buying, Gen Z runs a checking lap through sources the brand does not own. Reddit threads, YouTube unboxings and try-ons, customer reviews. This lap is not a detail at the edge of the journey. It is where the decision gets confirmed or killed.
"Before I buy, I read the reviews, I watch people unbox and try the product on YouTube, and I check all the reviews on Reddit."Man, 23-25, France
The pattern holds in the numbers: 51% go to social specifically for reviews and tests. A brand can be present all through discovery and still lose the sale in a Reddit thread it never sees.
Why "following" a brand means so little
Following a brand is a bookmark, not a relationship. When a follow exists, buyers explain it in flat, practical terms: a discount code, a giveaway, a reminder that they liked the product once. Even self-declared fans admit they do not read the posts.
"I follow a brand to remind myself that I like it, so I can look at it later."Woman, 23-25, France
The marketing meaning of a follow and the consumer meaning of a follow are two different things. For Gen Z, it marks intent to maybe come back. It does not signal loyalty, and it rarely predicts the next purchase.
What this changes for your research
If your study only asks how your content or your ad influenced the purchase, you measure the least decisive part of the journey. The brand-controlled moment is real, but it is upstream of the decision. The choice gets made in body-projection and third-party checking, and a standard funnel question will walk right past both.
Three ways to design around it:
- Ask who they saw, not just what they saw. Reconstruct the real purchase and probe on the person in the video. Similar body, similar life, real setting. That is the projection trigger, and most surveys never ask about it.
- Map the third-party lap. Ask where they went to check before buying, by name. Reddit, YouTube, review sites. Then find out what would have killed the sale there.
- Stop reading a follow as loyalty. Treat it as a saved intent and measure wishlist behavior and return visits, not follower counts.
The wider lesson from this study is that the decisive moments sit outside the brand's own channels. You only see them if you rebuild the real journey with the buyer and let them tell you where the choice was actually made. That is the kind of thing a week of AI-led interviews surfaces, because the interviewer can keep probing "and then what did you do" until the real trigger shows up.
FAQ
Where do Gen Z make their purchase decisions?
Mostly outside the brand's own channels. Social platforms are used to discover and prepare a purchase, 54% to save a product to a wishlist and 51% to read reviews, while only 30% buy on the spot (Verso x Discurv, 2026). The decision matures in third-party spaces and comes back later.
Do Gen Z trust brands on social media?
Less than brands assume. Following a brand works as a bookmark, tied to discounts or reminders, not loyalty. Trust to buy comes from ordinary people who look like the buyer and from third-party reviews, not from brand-owned posts (Verso x Discurv, 2026).
What is body-projection in the Gen Z buying journey?
Body-projection is the trigger to buy that comes from seeing a product used by an ordinary person with a similar body and life, in a real setting. It lets the buyer picture the product on themselves. In our interviews it outperformed polished campaigns and high-follower influencers.
Why do Gen Z check Reddit and YouTube before buying?
To verify the product through sources the brand does not control. Gen Z runs a checking lap through Reddit threads, YouTube try-ons, and customer reviews before committing. In the Verso x Discurv data, 51% use social specifically for reviews and tests.
Does a Gen Z follow predict a purchase?
No. A follow marks saved intent, a reminder to maybe come back, not loyalty. Even self-described fans say they do not read a brand's posts. Wishlist behavior and return visits predict intent far better than follower counts.
How should brands research the Gen Z purchase journey?
Rebuild the real purchase with the buyer and probe two moments most studies skip: who they saw using the product, and where they went to check before buying. Adaptive interviews work well here because the interviewer can keep probing until the real trigger surfaces.
Method: Verso x Discurv Gen Z study, France, 2026. 501 quantitative respondents aged 18 to 29 (Discurv) and around 50 AI-led qualitative interviews (Verso). Consumer quotes are translated from the original French.