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, you order from 1 to 50 creators (budget €50 to €2000/creator), 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: you order from 1 to 50 creators per campaign, with a budget from €50 to €2000 per creator that you set. For 4 to 6 creators, you get a first batch of creatives to test within a few days, with no subscription and payment on approval. 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
You approve before you pay
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, the Video + posting service places the video on the creator's account, ready to be boosted. The terms (duration, territory, authorization) are set in the brief: 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, 1 to 50 creators per campaign (€50 to €2000/creator) 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.