The $40M lesson
Over the last 18 months we have run about $40M in TikTok spend across DTC, beauty, apps, and food brands. A lot went right. Some went wrong. Here is what the number-sized lessons look like.
Rule 1: Do not run Meta ads on TikTok
This is the single biggest mistake we see. Ads shot, edited, and written for Meta placed on TikTok Ads Manager with a new aspect ratio. The CTR tanks. The CPM stays high. The client concludes "TikTok doesn't work for us."
TikTok works. The repurposed Meta ad doesn't.
Native TikTok creative is:
- Shot on a phone (or shot to look like it was).
- Sound-on. The sound is half the ad.
- 9:16. Vertical.
- Hook in the first 1.5 seconds.
- Native to a trend or sound that is already spiking.
- Under 30 seconds. Ideally 12–18.
Rule 2: Spark Ads > brand-handle ads
Whenever we have the comparison data, creator-handle Spark Ads outperform brand-handle ads by 2–3× on CTR and watch time. The user experience is different: it feels like a creator post that happens to be boosted, not a brand interruption.
Build a Spark Ads pipeline of 10+ creators from week one. Their handle, your budget.
Rule 3: Volume matters more than any other lever
We found a surprising thing running tests across accounts: the single biggest determinant of CAC was weekly creative variant count. Accounts shipping 40+ variants/week had CACs 40% lower than accounts shipping 10 variants/week. Same products, same budget.
TikTok is a creative volume business. Plan accordingly.
Rule 4: TikTok Shop is an asymmetric bet
For the right categories (beauty, fashion, food, supplements), TikTok Shop unlocks a different economic model — take-rate-compressed, creator-driven, with a content-to-commerce loop that moves faster than any playbook in ecom. Most agencies still treat it as a rounding error. It is not.
Rule 5: Not every brand should run TikTok
B2B SaaS with $200k ACVs should not run TikTok. Professional services should not run TikTok. A serious fintech bank should not run TikTok. The platform is opt-in — the audience either fits it or doesn't.
A good TikTok agency will tell you when you are not the right brand for the platform. That is the sign of one.