Diffusers were purchased to try the delivery of energy boost, alternative to coffee, which has stopped working a long time ago. For chronic coffee drinkers, do not waste your money. Apart from racing brain on the first day, you will get nothing. On top of not being effective, the promised 400 puffs are not plausible: within a week, way under 100, the gaming diffuser started tasting like burnt vape (those who know, know! - it's disgusting and dangerous), caffeine diffuser started leaking juice - even more disgusting. I would rather drink a quad-espresso for more effect than taste the sugary yuk of the juice.
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