How we evaluate and grade the research behind every recommendation on CreusLife.
Health content is uniquely prone to confidence inflation — where preliminary findings get presented with the same certainty as established science. We use an explicit three-tier system on every supplement and intervention recommendation so readers always know what kind of evidence sits behind a claim.
Every supplement and intervention on CreusLife carries an explicit evidence badge: Strong evidence, Moderate evidence, or Emerging evidence. These map directly to Tiers 1, 2, and 3 respectively.
We only recommend Tier 3 compounds in the context of structured experimentation — with a baseline, a defined intervention, and a retest. We never recommend Tier 3 as a core protocol component.
Where the evidence is genuinely uncertain, we say so explicitly. We prefer acknowledged uncertainty over false confidence. We also prefer directing readers toward established Tier 1 interventions before exploring the frontier of Tier 3.
Evidence evolves. A compound that is Tier 3 today may be Tier 1 in five years as the research base develops. We update content when the evidence picture changes. Each page carries a last-updated date.