Scientists at the University of Coimbra in Portugal have created an innovative compostable cosmetic packaging that replaces petroleum-based plastics with a blend of natural, renewable materials—including spirulina-based pigments, essential oils, chitosan, PLA, and PHBV biopolymers. This new material is strong, flexible, and durable enough to perform like traditional plastic, while remaining fully compostable. Its compatibility with 3D printing also allows companies to prototype and manufacture with far less waste, making it a practical and scalable alternative for the beauty industry.
The approach is proving successful not only environmentally but also for consumer safety. The built-in essential oils eliminate the need for synthetic chemical fragrances, some of which have been linked to hormone-disruption concerns. By harnessing algae and other bio-based ingredients, the model supports a circular economy and reduces dependence on fossil fuels. With major cosmetic brands increasingly searching for low-carbon packaging options, this breakthrough demonstrates real potential for widespread adoption—and signals how the beauty sector can transition toward a truly plastic-free future. More