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Peptides for immune support

Thymic and antimicrobial peptides studied for immune modulation. 11 compounds tracked in this category, ranked by community report volume — each with an evidence grade and links to the research.

COA-verified rankings 209 suppliers reviewed Rankings never sold — how we test
LL-37 B+
Immunity · 100-500 mcg

A human cathelicidin antimicrobial peptide that fights bacteria, viruses, and fungi while also modulating inflammation and aiding wound repa…

Immunity · 10 mg

A thymus-extracted peptide complex studied largely in Russia and Eastern Europe as an immune regulator and potential anti-aging agent, with …

Vilon A−
Immunity · 1 mg

Vilon is a synthetic Lys-Glu dipeptide bioregulator investigated as an immunomodulator and anti-aging agent, said to activate gene expressio…

Recovery · 5 mg

Cortagen (Ala-Glu-Asp-Pro) is a brain-cortex-derived synthetic tetrapeptide bioregulator used to support neuroregeneration, cerebrovascular …

Immunity · Typical Protocol

A Russian-developed Khavinson-family bioregulator peptide targeting bronchial and lung tissue, used to support respiratory function and prom…

Recovery · 100-200 mcg

Chonluten is a synthetic three-amino-acid peptide bioregulator (L-glutamic acid, L-aspartic acid, L-glycine) intended to support the respira…

Recovery · 200-600 mg IM/subQ, 1-3x/week

The body's master antioxidant, injected IM or subQ for antioxidant support, recovery, detox, and skin; reassuring safety reputation but limi…

KLOW C
Recovery · 10 units (4.0 mg blend) SubQ daily

GLOW plus KPV - a fixed-ratio 80 mg blend adding anti-inflammatory and gut action to skin and tissue repair.

KPV C
Immunity · 200-500 mcg daily

KPV is a small anti-inflammatory fragment of the hormone alpha-MSH that calms inflammation without causing tanning. It is studied mainly in …

Immunity · 1.6 mg 2x weekly

A thymus-derived peptide that fine-tunes rather than just boosts immune function. It has real regulatory approval abroad for hepatitis and c…

Pain · Experimental Dos…

Vasoactive Intestinal Peptide (VIP) is a naturally occurring neuropeptide abundant in the brain, gut, and peripheral nervous system that act…

Where researchers buy

The same top-ranked, COA-checked suppliers apply across categories:

★ Top 3 picksOur highest-rated, most transparent labs — compared side by side
#1
Serum Research
Featured partnerAffiliated · disclosure
#2
BioChain USA
#3
Nootropics Depot
Score9.6/109.5/109.5/10
COA✓ Yes✓ Yes✓ Yes
CountryUSAUSAUSA
Why we rate itFull per-batch COAs on every product and competitive pricing, from our affiliated partner — labeled as such wherever it appears.Published per-batch COAs, third-party testing, and a risk-free guarantee from a US-only shipper.Operates at a global scale with a high degree of transparency, and earns praise for its customer support and logistics.
Check prices at Serum Research →Read review →Check prices at BioChain USA →Read review →Check prices at Nootropics Depot →Read review →

Educational information only — not medical advice and not an endorsement to use any compound. Evidence grades summarize published research; most compounds here are unapproved research chemicals sold for laboratory use and labelled "not for human consumption."