To overcome these challenges, UDL developed an exclusive patented rotary cam bottle structure. At the core of this design is a cam-driven mechanism: twisting the gear-shaped cap transforms rotational movement into precise linear advancement, driving a piston that rises vertically to deliver a consistent and accurate amount of toothpaste with every turn. This engineering not only isolates the formula from air—preserving the stability and efficacy of its active ingredients—but also delivers an exact 0.7g dose with every click, perfectly matching the ideal usage for children aged 3 to 12. The piston’s close fit with the bottle wall ensures nearly 100% product utilization, solving the industry’s persistent problem of residual waste.

The translucent blue gear cap unites function and aesthetics, with proportions and grip specifically tailored for a child’s hand. Each turn of the cap brings a distinct, satisfying “click” and gentle resistance, creating a playful, toy-like experience that makes brushing engaging. Rather than innovation for its own sake, these design choices are grounded in deep insight into children’s psychology and behavioral development. For children in their formative years, abstract concepts like “oral health” and “cavity prevention” hold little meaning. The most effective way to instill positive habits is to transform necessity into play—turning each gear click into a quantifiable, game-like task. When brushing becomes an interactive ritual, resistance gives way to enthusiasm; every detail, from the mechanical feedback to the visible motion inside the cap, is a response to real-world use, establishing a routine that is uniquely child-centered and shifts the experience from “I have to brush” to “I want to brush.”

With this project, UDL brings together functionality, play, cognition, and emotional needs to establish a product language truly designed for children. The new TOOTOO Olafluor Repair Toothpaste packaging is more than a functional upgrade—it’s a paradigm shift for the entire children’s personal care industry. By embedding gamification, ritual, and instant feedback into everyday routines, UDL enables products to become powerful tools for healthy habit formation. This case exemplifies UDL’s commitment to fusing human insight with technological innovation, making the journey to lifelong wellness both intuitive and joyful by design.