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Cosnova’s 18-Month AI Journey: How Collective’s Digital Twin Hit 96% Accuracy in the First Loop

Marketing Week's Josh Stephenson looks inside Cosnova's 18-month journey to embed AI across its marketing function. Of the 15 pilots run, seven passed the brand's evidence-based quality tests. One of those was the digital twin work delivered with Collective, which hit 96% accuracy in the first feedback loop.

13.04.2026

Cosnova’s 18-Month AI Journey: How Collective’s Digital Twin Hit 96% Accuracy in the First Loop

Oliver Disney

Chief Growth Officer

Read time:

2 mins

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Lead with people, not technology

That was Cosnova’s guiding principle, set out by Rebecca Schalber, Senior Manager for Gen AI at the beauty business behind Essence and Catrice.

Cosnova ran 15 pilots across image generation, text, process automation, and AI video. Seven made it through. The team applied a clear set of tests to each: technical feasibility, organisational viability, and brand fit. Some pilots were dropped because they simply did not work. Others were dropped because the business decided it did not want to cross an ethical line.

Why the digital twin made the cut

In a category defined by texture, finish, and shimmer, most generative AI tools “break” the product. Schalber describes nail polishes with a rose base and peach glimmer being rendered with silver speckles. Close, but wrong…which, in beauty, is a brand problem.

The digital twins Cosnova built with Collective behaved differently. Where other AI outputs degrade with iteration, the twin got sharper. Product managers told Schalber they typically need seven to ten feedback loops to get a product shot signed off, whereas Collective delivered 96% accuracy in the first loop.

In their 2,000-person test, most people could not reliably tell the digital twin apart from a traditional product shoot. Some even preferred the twin.


"Collective was able to deliver a 96% accuracy in the first loop, something we sometimes don't even achieve after seven feedback loops."

Rebecca Schalber

Senior Manager, Gen AI, Cosnova

Why this matters for beauty marketing

Cosnova refreshes around half its product range every year. Speed to social and ecommerce is a business requirement. The digital twin turns the product itself into reusable infrastructure; one accurate, on-brand asset that scales across every channel without breaking.