Caffeine Anhydrous

Caffeine Anhydrous is a tier 1 form of Caffeine, used in 4,096 on-market products .

Why this tier: The form used in the overwhelming majority of human PK and exercise-performance RCTs, including the ISSN position stand's underlying evidence base.

Source: Guest NS et al. 2021, J Int Soc Sports Nutr 18(1):1

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