Materials are the foundation of innovation in additive manufacturing (AM), and the search for stronger, more durable, and multifunctional materials continues to push the boundaries of what AM can achieve. This column explores cutting-edge materials, from high-performance alloys to multi-metal systems, and the strengthening mechanisms that enhance their properties. By collecting articles that lead to deep understanding and optimisation of material performance, this column aims to bridge the gap between material science and AM, paving the way for next-generation applications in aerospace, healthcare, and beyond.