Scott reviews three methods for reducing caffeine's half-life to enable evening coffee consumption without sleep disruption, ultimately recommending paraxanthine as the safest and most effective option. Longer summary

Scott explores methods to reduce caffeine's duration in the body so people can drink coffee in the evening without disrupting sleep. He examines three approaches: increasing liver enzyme CYP1A2 with rutaecarpine (a Chinese tree extract), taking paraxanthine (caffeine's primary metabolite) directly, and using methylliberine (a shorter-acting caffeine analog). The post explains the metabolism of each option, reviews scientific evidence and user experiences, discusses safety concerns (particularly liver injury risks with rutaecarpine), and concludes with practical recommendations, ultimately endorsing paraxanthine as the best option for most people. Shorter summary