UGC Video for TikTok & Meta Ads: formats, hooks, budgets
A UGC video that performs in advertising runs 15 to 30 seconds, hooks within the first 3 seconds, shows the product in use and ends with a clear CTA. The format is vertical 9:16, full screen, sound on. The winning structure: hook → problem → product → proof → CTA. Don't bet everything on a single video: test multiple hooks, angles and creators to find the winning creative. On UGC Pocket, one flat campaign package (from €2,000), set in the commercial proposal, is enough to produce a batch of variations: then you boost the winner with Spark / Partnership Ads.
Specs by platform
Short answer: vertical 9:16, full screen, sound on, 15-30s. The details vary by platform: here are the benchmarks. (Always check the latest official specs: TikTok Ads, Meta Ads Guide.)
| TikTok | Reels (Meta) | Shorts (YouTube) | |
|---|---|---|---|
| Ratio | 9:16 | 9:16 | 9:16 |
| Ideal length in ads | 9-21s | 15-30s | 15-30s |
| Sound | Central (trends) | Important | Important |
| Style | Native, fast, raw | Native, polished | Native, info/value |
| Captions | Recommended | Recommended | Recommended |
Golden rule: shoot native vertical, never a cropped landscape video. And plan for captions: a significant share of views happen with the sound off.
The hooks that work
The hook is the first 3 seconds: they decide whether the video gets watched or scrolled past. Here are 5 proven templates to give as an angle in your UGC brief (the creator rephrases them in their own words):
- The problem: "If you struggle with [problem], watch this." Speaks directly to the viewer's pain.
- The result: "I tested [product] for 7 days, here's what happened." Promises a transformation.
- The visual surprise: a gesture, a before/after, an unexpected detail in the first second.
- The question: "Why is nobody talking about this?" Creates instant curiosity.
- The reversal: "I was skeptical, and then…" Disarms distrust toward ads.
A structure that converts
Beyond the hook, UGC videos that convert follow a 5-beat arc. Spell it out in the brief:
Hook (0-3s)
A hook that stops the scroll (one of the 5 templates above).
Problem (3-8s)
The frustration the viewer recognizes. You build identification.
Product (8-18s)
The product enters the scene, shown in real use, not as a catalog shot.
Proof (18-25s)
The result, the verdict, the concrete detail that makes it credible.
CTA (25-30s)
A clear, single call to action: "link in bio", "-10% today".
Budget & number of variations to test
Ad performance comes from testing, not from one "perfect" video. The right instinct: produce multiple variations (different hooks, different angles, different creators), run them in parallel, keep the ones that break out and cut the rest.
That's exactly what UGC Pocket enables: one flat campaign package, from €2,000. You get a batch of creatives to test, with no subscription. Full pricing is on the Pricing page.
Tip: vary the hooks first on the same product: it's the variable that changes the results the most.
Several creators, several hooks
Our team reviews every video
Whitelisting / Spark Ads
Once you've identified your winning creative, don't only run it from the brand's account: boost it from the creator's account. That's whitelisting: Spark Ads on TikTok, Partnership Ads on Meta. The ad keeps the creator's identity and credibility, which reduces the "advertising" effect and often improves engagement.
On UGC Pocket, creators post the video on their own account, ready to be boosted. The terms (duration, territory, authorization) are set out in the commercial proposal: it's all detailed in our guide to UGC usage rights & whitelisting.
Frequently asked questions.
How long should a UGC video be for ads?
Between 15 and 30 seconds. The hook has to land in the first 3 seconds, the product should appear early, and the video should end with a clear CTA. Vertical 9:16 format.
What format for TikTok and Reels?
Vertical 9:16, full screen, sound on. Fast pace and native editing; avoid cropped landscape videos and plan for captions.
How many variations should you test?
Several rather than just one: different hooks, angles and creators. On UGC Pocket, one flat campaign package from €2,000, enough to produce a batch to test.
What makes a good UGC hook?
A hook that stops the scroll in 3 seconds: point at a problem, promise a result, create a visual surprise or ask a question.