July 23 marked the official sales launch of the limited-edition so!flow x Besties Club drop, available exclusively at Rossmann Poland drugstores.
Just before the launch, we had the opportunity to present the collection during a pre-premiere event in Warsaw. The event was attended by influencers, media representatives, and the Besties Club community, who were among the first to explore the products and see the results of many months of joint effort. 🩷
Although the collection will remain on shelves for only two weeks, creating it was a multi-stage process that included:
• developing the concept and selecting the products,
• working on the cosmetics’ formulas, fragrances, and properties,
• designing the packaging and visual identity,
• preparing communications and promotional activities supporting the launch.
From the start, it was crucial to us that the Besties’ involvement went beyond merely promoting the finished collection. Each of them was actively involved in the creation process, bringing their own experiences, needs, ideas, and signature energy.
This project confirmed a key insight for us: the most valuable brand-creator collaborations happen when they are built on genuine partnership and joint decision-making.
Audiences quickly spot whether authentic engagement lies behind a project. The initial reactions, messages, and feedback show that this kind of cohesion translates into a genuine and incredibly enthusiastic reception.
Behind the collection’s brief two-week presence on the market sits nearly a year of discussions, decisions, tests, and co-creation.
Through August 5, products from the so!flow x Besties Club collection can be found in person and purchased exclusively at Rossmann drugstores.






