Performance & longevity

Creatine, urolithin A, amino acids, electrolytes and other targeted supplements, held to the research on each ingredient.

What we look for
  • Research behind the ingredient: human trials at the dose on the label, which our topic pages link.
  • Third-party tested: NSF Certified for Sport, USP Verified, Informed Choice or Informed Sport, with the exact product and size in the certifier’s own database.
  • A plain label: every ingredient and amount, with no proprietary blends.
  • Claims that match the evidence: no promises the trials do not support.
  • Honest cost: the price per dose the trials used, compared with cheaper routes such as food, whey or homemade electrolytes.
  • Proprietary blends, “clinically dosed” claims that name no study, and “utilization” or absorption percentages with no published method.
  • Gummies and chews with no third-party test. They are hard to dose accurately.
  • Anti-aging, “cellular renewal” or hangover-cure claims without a placebo-controlled trial in people at the label dose.

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Weekly research digest

New topics and updated research, once a week when there's something new. How it works