About
Creative testing with a clear owner.
Tubentum is an AI ad creative partner for DTC brands on Meta, led by founder Soyeon Yoon, with 10+ years of experience in ecommerce, marketing and advertising. Starting with a creative test, the service connects account research, AI creative iteration, testing and scale-up in a monthly partnership scoped to the brand.
Founded 2025 · Seoul, working with brands in the US, Australia, the UK and Europe · Updated October 16, 2026
The person behind the work
Soyeon Yoon
I bring 10+ years of experience in ecommerce, marketing and advertising, working with brands at different stages and budgets. The pattern was always the same: targeting became more automated, while good creative decisions needed customer research, reliable production and an honest reading of the results.
Tubentum connects those decisions in one service. I research the opportunity, write the concepts, produce the AI ads and review what should happen next. Launch ownership, account access and test budgets are agreed before starting. Media buying and scale-up can be included in the monthly partnership, with account responsibilities agreed upfront.
It is a founder-led business. I own the strategy and the engagement, with production capacity and operating responsibilities agreed before work begins. If you book a call, you speak with me.
How it works
From a question to a live test and a next decision.
Every review informs the next creative iteration. Start with a 20-minute account audit and a $3,000 creative test, then a full-scope monthly partnership, typically $10K–$30K. Month-to-month. No commitment.
Research the opportunity
Account performance, customer reviews, the product and competitor advertising inform the questions worth testing.
Set the creative guardrails
Your brand guide, product references, approved claims and compliance requirements guide the scripts and production. Updates carry through the workflow.
Produce and review
AI production explores the agreed formats. Human review checks product references, claims, brand fit and the edit before launch.
Launch and measure
Launch ownership and account access are agreed with your buyer. I read the results against the test question.
Decide what comes next
I recommend what to continue, revise, stop or investigate further. Ongoing work turns those findings into the next creative batch.
Scope ongoing support
Monthly partnerships can include account-wide media buying and scale-up, with the operating scope agreed upfront.
- +AI-generated video ads for Meta, in weekly batches
- +Concepts, scripts, headlines and primary text
- +Static ads and winner variations on request
- +Dedicated performance dashboard, proactive reports and anomaly reviews
- +Live creative test launches, measurement and the next test decision
- +Seasonality planning, creative iterations and the next test priorities
- −Live shoots, creator sourcing or influencer management
- −Landing pages, email flows or CRO programs
- −CPA or ROAS guarantees. Scope, delivery dates and revision terms are agreed before starting
Proof, in dollars
Meta-attributed revenue across 149 ad IDs using Tubentum creative over 82 days (June 28 to September 17, 2026), with 3,858 attributed purchases. Ad IDs include repeated use of creative; the client managed media buying. Read the case
Paid work so far · supplements · apparel · pet care · fitness · leather goods · B2B SaaS · client names kept private
Plan the next test for your account.
Bring your product, recent account results and the bottleneck you want to solve. I will confirm whether the $3,000 creative test is a useful next step.
Book a creative audit