Why it matters
They blend into feeds on TikTok, Instagram and Facebook, where people scroll past anything that looks like an ad. A person showing the product, saying what problem it solved, earns a few more seconds of attention.
What makes them work:
- A hook in the first 2 seconds. A problem, a surprising claim, a result.
- A real use. The product in hand or on screen.
- One message. One problem, one outcome, one call to action.
UGC ads wear out like any creative (see ad creative fatigue), so brands that use them make new versions often. AI actors make that cheaper: you write the script and pick a presenter, and the video is generated.
How Cosmo handles it
Cosmo makes UGC videos with AI actors (10 a month included) from patterns in your competitors' longest-running ads. Each video gets a hook, a demo moment and one call to action. They go into your ad account as a paused test, and he tells you which hook wins.