Beyond microplastics: a shift in formulation chassis

ABSTRACT

The forthcoming European Union restrictions on intentionally-added synthetic polymer microparticles mark a structural inflection point for the personal care industry. Beyond meeting compliance requirements, these measures compel formulators to re-examine formulation architectures that have been optimised for decades around fossil-derived polymers, silicones, and synthetic texturising systems. Simply identifying drop-in replacements will not be sufficient. Incremental substitution strategies are increasingly inadequate, and in highly sensorial categories - particularly colour cosmetics - a more fundamental redesign of the formulation chassis is often required. This article examines the technical challenges of moving away from legacy polymer networks, the limitations of direct sensorial mimicry, and the potential of bio-based, biodegradable polymers - especially bacterial cellulose - as a new class of high-performance structuring materials. It also proposes a practical roadmap to help formulators navigate the transition to fossil-free, microplastics-free formulations while maintaining performance and, where necessary, redefining sensoriality

The countdown to the European Union's restriction on intentionally added synthetic polymer microparticles has begun. While the regulation is often framed as a compliance exercise, its technical implications run much deeper.