SEALIVE (Strategies of circular Economy and Advanced bio-based solutions to keep our Lands and seas alIVE from plastics contamination) has brought advanced bio-based plastic solutions to the market, providing viable alternatives to single-use plastics. These plastics are characterised by advanced properties and enhanced efficienty, improved processing technologies and product design, and implemented effective end-of-life solutions. SEALIVE solutions have been up-scaled and demonstrated by eight end-applications in six regions spanning across Europe and South America. Thus, the aims was to reduce plastic waste and contamination on land and in seas by boosting the use of biomaterials and contributing to the circular economy with cohesive bio-plastic strategies.