Aviation fuel is a complex mixture of hydrocarbons like alkanes, cycloalkanes, and aromatics, further complicating the transition to greener alternatives. To enhance the efficiency of eFuel and to increase the current 50% blending constraint of SAFs , there is a crucial need to optimize polycyclic hydrocarbons (PCHCs), the building blocks of these synthetic eFuels. Focusing on the composition and characteristics of PCHCs, one aims to develop more efficient and environmentally friendly alternatives to traditional AF, paving the way for a greener future in air travel [2, . eFuel may play a pivotal role in the aviation industry's imperative to reduce GHG emissions, offering an environmentally responsible alternative that holds the key to achieving long-term carbon-neutral growth and realizing netzero targets.