Claimed effect · Humanin

Does Humanin help with cytoprotection / metabolic health?

D
Grade D — no human evidence0 controlled · effect size: not measurable
Short answerNo human evidence. As of 3 September 2026, no controlled human trial has tested Humanin for cytoprotection / metabolic health. Humanin protects neurons and other cells from stress in laboratory and animal models. Human work is observational — levels correlate with age and disease — and cannot show what supplementation would do.

What the studies show

Humanin protects neurons and other cells from stress in laboratory and animal models. Human work is observational — levels correlate with age and disease — and cannot show what supplementation would do.

Animal studies, cell studies, or anecdotes only. This is where almost every viral peptide sits. Promising and proven are different words for a reason.

In context

Humanin is a small peptide encoded within mitochondrial DNA, discovered in 2001, with cell-protective effects in laboratory models of Alzheimer's, diabetes and cardiovascular stress. In people, blood levels of humanin fall with age and vary with disease — but that is observation of the humanin people already have, not a test of giving more. No controlled human trial has administered it. It is not approved anywhere.

Humanin is not approved. Legal status differs by country — see the regulation section or the jurisdiction pages.

Questions

Is Humanin proven to help with cytoprotection / metabolic health?
No. There is no human evidence for it (0 controlled); the claim rests on animal or cell studies and LYO grades it D.
What studies are behind the grade?
Humanin protects neurons and other cells from stress in laboratory and animal models. Human work is observational — levels correlate with age and disease — and cannot show what supplementation would do.
Is Humanin approved for this?
No. Humanin is not approved; it is not an approved medicine for any indication in the jurisdictions LYO covers.

Other outcomes for Humanin

Written and maintained by LYO Research — how pages are written and checked. Reviewed 3 September 2026. Grades count human evidence only; see how LYO grades. Not medical advice. Correct this page →