The rapid growth of the packaging industry has resulted in a substantial increase in waste and pollution. Regulations, goals and social responsibilities have reoriented businesses’ priorities towards sustainable practices. The life cycle assessment (LCA) carried out in this study measured and compared significant efforts affecting the sustainability of plastic cosmetic packaging. Evaluations were conducted on the life cycle environmental effects of dematerialisation, recycled content, renewable energy share powering the manufacturing processes, energy-saving efforts, and end-of-life (EoL) recycling rates across various scenarios. Consideration was also given to different types of fossil and bio-based polymers (ABS, PP, PET and PLA). Dematerialisation and recycled content were identified as having the most significant positive effects on packaging sustainability. An average net reduction of 52% in the total carbon footprint for all materials assessed was noted when 100% recycling material was applied. The overall impact was reduced by an average of 13% when using 100% solar photovoltaic energy sources in the manufacturing processes. The minimal contribution of the manufacturing stage to the overall impact, compared to the other life cycle stages, was the main attribute causing this comparatively low impact reduction. Furthermore, compared to the other case scenarios, it was determined that polypropylene (PP) was found to have the most favourable environmental impact.