Thinning brokers are used in vape cartridges to help make the oil less viscous and even more vaporizable. Even so, some men and women could have sensitivities or allergies to sure thinning brokers, like propylene glycol or glycerin. Which is all there is to it, just a similar mix of https://dankvapestock.com/product/berry-blast-1g-all-in-one-disposable-vape-pen/