Peptides for immune support.
Peptides researched for immune modulation, antimicrobial activity, and immune resilience.
Inclusion in this category means the peptide is being researched for this purpose — not that it's proven effective. Always consult your healthcare provider.
Afamelanotide
Afamelanotide (formerly Melanotan 1, marketed as Scenesse) is a synthetic analogue of alpha-melanocyte-stimulating hormone (alpha-MSH) that stimulates melanin p...
Read full profileGlutathione
Glutathione is a tripeptide (glutamate-cysteine-glycine) that is the body's most abundant and important intracellular antioxidant. It is produced naturally in e...
Read full profileMelatonin
Melatonin is an endogenous hormone produced primarily by the pineal gland in response to darkness, serving as the body's master circadian rhythm regulator. It i...
Read full profileThymosin Alpha-1
Thymosin Alpha-1 (Tα1) is a 28-amino acid peptide originally isolated from thymosin fraction 5 of bovine thymus by Allan Goldstein in the 1970s. The synthetic v...
Read full profileARA-290
ARA-290 (cibinetide) is an 11-amino-acid peptide derived from the structure of erythropoietin (EPO) that selectively activates the innate repair receptor (IRR),...
Read full profileLL-37
LL-37 is the only cathelicidin-derived antimicrobial peptide found in humans. It is a 37-amino-acid peptide (beginning with two leucines, hence 'LL') cleaved fr...
Read full profileSelank
Selank is a synthetic peptide developed at the Institute of Molecular Genetics of the Russian Academy of Sciences. It is a synthetic analogue of the naturally o...
Read full profileThymalin
Thymalin is a polypeptide complex extracted from bovine thymus gland tissue, developed by Vladimir Khavinson and colleagues in the Soviet Union/Russia. It is us...
Read full profileVIP
Vasoactive Intestinal Peptide (VIP) is a 28-amino acid neuropeptide naturally produced throughout the nervous system, gut, and immune tissues. It acts as a pote...
Read full profileEpitalon
Epitalon (Ala-Glu-Asp-Gly) is a synthetic tetrapeptide based on epithalamin, a peptide extract from the pineal gland. Developed by Russian gerontologist Vladimi...
Read full profileKPV
KPV is a naturally occurring tripeptide (Lysine-Proline-Valine) derived from the C-terminal end of alpha-melanocyte-stimulating hormone (alpha-MSH). It retains ...
Read full profileVilon
Vilon is a synthetic dipeptide (Lys-Glu) developed by Vladimir Khavinson as a bioregulator peptide purported to derive from bone marrow and modulate immune func...
Read full profileQuestions to ask your doctor about immune support.
- 01 What peptides, if any, have evidence for my specific immune support goals?
- 02 What lab work should I have done before and during any peptide therapy?
- 03 How would this interact with my current medications or health conditions?
- 04 What's a realistic timeline for results based on the current research?
Immune Support research, bias-checked.
Weekly peptide summaries — clinician-reviewed and free of hype.