I tried many gels in my past race from other brands but all other gels which I tried were lasting around 20 -25 mins. But that was not the case with trekk advantedge Spearmint I took 4 of them in my last race tmm 2023 full marathon and they were a complete game changer for me as they not only gave me the physical push I needed but also the caffeine content in them gave me the mental push in the crucial stage of the race and help me to endure towards the finish