Ruthless E-juices 60ml Vape Juice by Ruthless Vapor Ruthless E-juices 60ml we are Relentless when it comes to manufacturing the best e-juices. Explore our Ruthless e-liquids today and taste the difference for yourself. All Ruthless e-liquids are available now in 15ML, 30ML, 60ML and 120ML bottle sizes, as well as 0MG, 3MG, 6MG, and 18MG nicotine levels.