Caffeine Anhydrous
Caffeine Anhydrous is a tier 1 form of Caffeine, used in 4,099 on-market products .
4,099
on-market products
tier 1
quality tier
n/a
elemental fraction
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