Peptides

Deep profiles for diligence—not product pages. Filter by goal or open any profile for mechanism, evidence, and citations.

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Showing 2 peptides tagged Immune support.

Thymosin Alpha-1

Stronger clinical signal

A 28-amino-acid immunomodulatory peptide, marketed in dozens of countries as Zadaxin/thymalfasin for chronic viral hepatitis and as an immune-response adjunct in cancer and infection. One of the few peptides in this space with genuine international drug-approval history.

Immune support · Longevity / aging

LL-37

Limited human data

The only human cathelicidin antimicrobial peptide, naturally released at wound margins during healing. Studied as a synthetic topical treatment for hard-to-heal chronic wounds, giving it more human RCT support than most "recovery peptide" research chemicals.

Immune support · Skin / repair

Evidence labels

EmergingMostly preclinical or early signals; human athletic data is thin.
Limited human dataSome human pharmacology or small studies; outcomes for fitness use remain limited.
Stronger clinical signalSupported by larger clinical trials in defined medical populations.

Same color code everywhere on STACKD: green = stronger clinical/human data, amber = limited human data or mechanism, slate = emerging/anecdotal, and oxblood = an in-house STACKD summary.