Short-form video ads made to stop the scroll

Write the hook out loud, as the exact words the creator will say, and give several of them. This is the single change that separates briefs that come back usable from briefs that come back generic, and it is the instruction most brand teams skip because it feels like doing the creator's job.

It is not. A creator is being hired for delivery, framing, credibility and pace. The claim your product can make, the objection your buyers actually raise, and the phrasing your legal team will accept are yours, and no amount of creative talent lets someone guess them. A brief that says "start with a strong hook about convenience" produces five different interpretations from five creators, none of which you can compare fairly.

The working structure is short. State the one benefit to demonstrate. State the objection to defeat in the first line. Write three to five complete alternative openers, five to eight words each, so the same body can be filmed several times with different starts. Give the runtime as a word count, not a duration. Specify vertical 9:16 framing. Write the call to action verbatim. Then list what must not be said, which on regulated products is the longest and most important part.

Everything after that is deliberately left open. Location, wardrobe, props and pacing are what the creator is for, and briefs that script those too are the ones that come back looking staged.

Short enough that the whole idea lands before the thumb moves, which in practice means the runtime decides the script rather than the other way round. On-camera delivery runs about 150 words a minute, so a duration converts straight into a word budget, and that budget is smaller than most people expect.

The hook column does not grow. However long the ad runs, the opening is still two to three seconds, so a 45 second ad has the same seven words to earn attention as a 10 second one. That is why testing openers matters more than testing lengths.

One framing warning, because it costs real money. Short-form is 9:16 vertical everywhere it matters, TikTok, Reels, Shorts and Meta placements, but not everywhere a brand advertises. Amazon accepts Sponsored Brand Video ads in 16:9 horizontal only. If the same product is advertised in both places, ask for both framings in the same session rather than paying for a second shoot.

Three to five per body, filmed in the same session. Beyond that you are paying for variations you will not have the budget to give a fair test, and below three you are testing the body and the opener at once, which tells you nothing about either.

The reason to batch them into one shoot is cost. The expensive parts of a creator video are the creator's time, their setup, and getting your product to them. Re-recording a seven word opening line four more times adds minutes, not another fee, provided the brief asked for it up front. Ask afterwards and you are booking a second shoot.

What to vary between them is worth being deliberate about. Change the angle of attack, not the wording: a question, a blunt claim, a visible result, a stated objection, a moment of use. Five rephrasings of the same idea are one hook, and you will learn nothing from running them against each other.

A note on the numbers that circulate about hooks. You will read that a specific percentage of viewers decide in the first three seconds, or that a particular hook style lifts conversion by some figure. Those numbers are almost never traceable to a platform's own published research, and we do not repeat them here. What the platforms do state plainly is that these units autoplay, often muted, into a fast-scrolling feed. That is enough to justify writing the opener carefully without inventing a statistic to dress it up.

A short-form script is a shot list with words attached, not a paragraph of copy. Four elements do the work, and they map onto the runtime table above.

The opener, five to eight words, spoken to camera. The demonstration, where the product is visibly used rather than described, which is the part that separates creator video from a voiceover ad. The proof, meaning one concrete specific: a number, a before and after, or the objection answered out loud. And the call to action, written verbatim, because "encourage them to buy" comes back as five different sentences.

Alongside those, the brief carries the practical half: vertical 9:16 framing, whether captions are burned in, whether the creator speaks on camera or voices over, what the product must look like next to something familiar so scale reads correctly, and the list of claims that cannot be made. Rights belong here too, since whether you can put paid budget behind the footage is agreed before the shoot rather than argued about after delivery. That is covered in UGC usage rights.

If you want the structure filled in for your product rather than described, the brief generator writes it: brief, timed script, alternative hooks, technical spec and the creator profile to recruit. Hook writing specifically is broken down further in our guide to TikTok hooks, and the wider creator-video cost picture in how much UGC content costs.