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All editionsMethodologyUpdated · September 2026
Immune-modulation research

Thymosin Alpha-1.
6 vendors · 2068

N-terminally acetylated 28-residue peptide derived from prothymosin alpha. Researched for T-cell maturation pathways. Marketed in some countries as Zadaxin (Italy, Mexico, China) under prescription; research-peptide formulations are not approved for human therapeutic use.

Live vendor register · sorted by price

Every vendor. Same compound, sorted ascending.

THYMOSIN-ALPHA-1 · price-normalised
n = 6 vendors
01
QSC Peptides
VID-QSC-PEPT
HPLC · MS · Janoshik
99%
3–7 days (EU warehouse) · Kit of 10 · from $230 USD
€20
02
Particle Peptides
VID-PARTICLE
COA PDF (method unstated)
96%
2–7 days · SK dispatch
€41
03
CertaPeptides
VID-CERTAPEP
Janoshik (selected lots)
98%
3–7 days · RO dispatch
€49
04
SwissChems
VID-SWISSCHE
HPLC · third-party COA
99%
2–3 weeks · US dispatch · from $63.99
€55
05
Direct Peptides EU
VID-DIRECT-P
No public testing info
99%
10–14 days · UK network · from £56.25
€65
06
PeptidesDirect
VID-PEPTIDES
HPLC · MS (per-batch COA)
99.31%
DE 1–2 d · EU 3–10 d · DE dispatch
€68
Long-form research guide

Immunity Enhancement Research. Mechanism + protocols + safety.

T-cell modulation, innate immunity, and adjuvant effects in preclinical models

Open the long-form guide for Thymosin Alpha-1 →