BioStacks
Best Green Tea Leaf Extract for Longevity
Top 1 products ranked
Last reviewed May 2026
Clinical dose: 200–500 mg
Why Green Tea Leaf Extract for Longevity
Green Tea Leaf Extract plays a supporting role in longevity. EFSA safety ceiling: <800 mg EGCG/day from supplements. USP hepatotoxicity warning (2019).
What dose to look for
Clinical studies typically use 200–500 mg of green tea leaf extract. Expressed as EGCG. Sweet spot is 300–500 mg EGCG/day. Stay below 800 mg EGCG/day (EFSA hepatotoxicity threshold). Take with food. Products below this range may not deliver meaningful results.
What the research says
Green Tea Leaf Extract has moderate clinical evidence for longevity benefits. 317+ clinical trials support modest cholesterol reduction, but effect sizes are small Learn more