From Complexity to Clarity: How KESS Berlin Personalizes Beauty With Stella AI

KESS Berlin is known for intuitive, everyday beauty essentials designed to simplify routines—mix-and-match sets, travel-friendly formats, and products that effortlessly fit into modern life. But simplicity becomes a challenge when customers need to combine multiple products and shades online. Stella AI solves exactly that.

Challenge

For a brand built on customizable sets, shade and product pairing can quickly become overwhelming—especially in e-commerce.

Many shoppers were unsure which concealer shade matched their skin tone, which blush complemented their CC cream, or how to create a harmonious set across multiple products. Browsing static images often wasn't enough, and hesitation led to dropped purchases or suboptimal choices.

Justine, E-Commerce Marketing Manager at KESS Berlin, explains:

“Shade selection can be tricky online. Everyone's skin tone and preferences are unique, and photos alone can't capture everything—especially when building sets with multiple products.”

Solution

KESS Berlin integrated Stella's AI-powered product and shade-matching solution across their entire site—first on a dedicated landing page, and soon after directly on product detail pages.

Stella guides shoppers through a short, intuitive flow and recommends shades and product combinations that naturally fit together. Whether matching concealer to CC cream, pairing blush and bronzer, or completing a full mix-and-match set, Stella functions like a digital makeup artist available at any time.

“It feels like having a digital makeup artist—Stella makes mix-and-match effortless.”

Launch Highlight: 13-Shade Concealer Launch

When KESS Berlin launched its new concealer range with 13 shades, Stella played a key strategic role.

Stella was embedded into the product detail page during the pre-launch phase, allowing shoppers to preview the product early and find their perfect shade before it was even available.

Within just eight weeks before and during the launch, more than 70,000 shoppers used Stella to discover their best shade—creating massive early engagement, building excitement, and ensuring customers were ready to buy the moment the collection went live.

“Stella helped customers find their perfect shade before, during, and after the launch. With 13 shades, that support was incredibly valuable”

Impact

While KESS Berlin does not share exact numbers publicly, the influence is clear: significantly higher conversion rates, a higher AOV, stronger purchase confidence, and more completed checkouts.

“We see a very positive impact on conversion rates, AOV, and customer experience. Stella reduces hesitation and gives customers more confidence in their choices.”

Stella AI also encourages exploration. Shoppers try shades they normally wouldn't consider and discover new combinations that feel tailor-made.

“Customers usually reorder the same shades—but with Stella, they're more open to trying new ones.”

This exceptional performance encouraged KESS Berlin to take the next step: rolling out Stella to their international markets to deliver the same trusted guidance to shoppers worldwide.

Conclusion

Stella AI provides KESS Berlin with the intelligence behind seamless digital beauty consultation—combining shade accuracy, product pairing, and 24/7 availability in a way that perfectly aligns with the brand's mission of simple, intuitive beauty.

“Stella brings the simplicity and confidence of KESS Berlin into the digital world, making every interaction feel personal, effortless, and smart.”

With this success, KESS Berlin expanded Stella across all categories and is now transitioning to Stella Assist—the AI-powered chat assistant—bringing the same intelligence into customer service for more beauty-focused, brand-aligned consultation.