Semilac Design Sprint

Client_

Nesperta Europe sp. z o.o. is a modern and dynamically growing company in the cosmetics industry, specializing in the production and distribution of nail styling products. Its assortment includes hybrid and traditional nail polishes, gels, care products, accessories, and nail styling devices. The company owns the Semilac and hi hybrid brands, holds a leading position in its industry on the Polish market, and is continuously expanding its operations abroad.

Challenge_

Faced with intense competition and rapidly evolving consumer needs, Semilac-a leading manufacturer of hybrid nail polishes and nail accessories-took on a strategic challenge: strengthening loyalty among mobile nail stylists. The company recognized the potential of designing dedicated solutions to support the stylists’ daily work. However, it was crucial to ensure that the proposed functionalities genuinely met their expectations and reinforced their connection with the brand.

The Semilac team, in search of new opportunities, partnered with us, choosing to run a Design Sprint—a method that enables rapid validation of assumptions with users and efficient development of solutions to defined challenges. This process made it possible to quickly create a prototype, test ideas directly with users, and gather valuable feedback from stylists using competitive tools.

Main challenges of the project:

• Validation of the actual need for a new solution.
• Competitiveness of the solutions already used by the stylists.
• Understanding the expectations and specific needs of the target group.
• Creating a solution that supports mobile nail stylists and strengthens their loyalty to the brand.

Solution_

The Design Sprint we conducted for Semilac played a crucial role in redefining the development strategy for their mobile application. Initially, the client planned to create a completely separate solution, but during the workshops, we collectively discovered that the original concept did not meet the real needs of users. Based on the research results, we jointly decided to change direction — instead of developing a standalone app, we chose to implement dedicated features for the PRO group within the existing Mój Semilac app.

Over four intensive workshop days, we moved from an idea to a testable prototype. We validated assumptions, identified key functionalities, and minimized the risk of design errors. As a result, we built a solid foundation for further product development — based on data rather than guesswork, and genuinely tailored to user needs.

01 – Minimizing project risk

Thanks to the Design Sprint, we were able to validate the initial assumptions early on and quickly identify that the planned app did not meet the real needs of the users. This helped avoid the risk of a costly implementation of an ineffective solution.

02 – Real savings through informed decisions

Instead of creating a separate tool, we focused on developing features within the existing Mój Semilac app. This way, we avoided allocating resources to unnecessary development and gained more capacity for activities that deliver real value.

03 – Focus on the real needs of users

During the workshops, we delved deeper into the world of key users — mobile stylists. This enabled us to design solutions that truly address their daily needs and challenges.

04 – Decisions based on data, not assumptions

Instead of relying on assumptions, we provided the client with concrete data and insights gathered from direct conversations with users. Even before starting development, the client gained knowledge that enabled them to make informed design decisions — based on real needs rather than intuition.

We introduced a B2B module into the existing app, enabling stylists to create salon profiles, access business privileges, and making it easier for clients to find services tailored to their needs. As a result, the solution gained recognition in the m-commerce industry and was honored with two Mobile Trends Awards trophies.

Completed work_

Preparation stage, i.e. in-depth interviews

Before initiating the Design Sprint workshops, our team conducted in-depth interviews with representatives of Semilac’s target group. These interviews, guided by a detailed script, aimed to gain a deeper understanding of the everyday challenges, needs, and expectations of nail stylists regarding potential digital solutions. The insights gathered during this preparatory phase proved to be extremely valuable for the subsequent design work, helping the team focus on functionalities that truly matter from the stylists’ perspective.

Day 1: Defining challenges and designing solutions

On the first day of the workshops, the team focused on precisely defining the challenges faced by mobile nail stylists and on selecting the key area that required in depth analysis. In doing so, the team considered both Semilac’s brand goals and strategy, as well as potential risks associated with introducing a new tool.
During the session, the team jointly analyzed users’ needs and mapped them against business priorities. Based on this, the team identified the area most critical to the project’s success and in need of further testing. The group then moved into a creative phase, during which participants designed a range of solution concepts aimed at effectively addressing the defined challenge. This stage not only clarified core user needs, but also set the direction for next steps within the Design Sprint process.

Day 2: Solution selection and user journey

Selection of the design concept

We analyzed all the concepts, evaluating them in terms of business value, feasibility, and impact on users. Based on this, we selected the solution that became the foundation for further actions.

Flow development and selection

We translated the chosen concept into a clear and intuitive user flow across several key steps. This allowed us to identify which interactions and features are most important at each stage of the customer experience.

Designing the user journey

Based on the selected flow, we created a storyboard, which became the foundation of the prototype and helped visualize the future user experience before testing.

Day 3: Prototyping

Stworzenie wersji prototypowej aplikacji.

Based on the selected user journey, the Product Designer created an interactive prototype that visualized the concept in terms of intuitiveness, consistency, and usability. It reflected key functionalities and interaction logic, allowing us to assess navigation flow and alignment with user expectations. This enabled us to identify barriers and optimize the experience even before the solution’s implementation.

Day 4: User Testing

We conducted tests to verify the design assumptions with users. We observed their interactions with the prototype, identifying difficulties and areas for improvement.

Project scope_

• IDI Interviews
• 4-day Design Sprint
• Rapid prototyping
• Moderated user testing

“A reliable partner is the first thing that comes to mind when I think of describing our cooperation with eo Networks. Together we managed to launch one of the best Polish applications in the ‘beauty’ category. A fantastic and dedicated team, with great passion visible in their everyday work. I wish everyone such a partner”.

“One of the greatest strengths of Euvic Group is their ability to understand the needs and expectations of their clients. Before starting a project, they thoroughly analyze the requirements and ensure that the mobile application is tailored to individual business needs. Their client-focused approach translates into creating applications that are intuitive and easy to navigate for users. They focus on delivering an optimal user experience, which results in higher customer satisfaction”.

“Euvic Group turned out to be the perfect contractor for us in the implementation of the ‘Mój Semilac’ mobile application. The team demonstrated not only professionalism and flexibility but also excellent customer approach. Thanks to this, we were able to quickly and efficiently introduce a ready solution to the market. We are very satisfied with the results of our cooperation and sincerely recommend this company as a trustworthy partner”.