Immune-modulation research
Thymosin Alpha-1.
7 vendors · €41–80
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 · grouped by strength
Every vendor. Cheapest per mg first, kits listed separately.
THYMOSIN-ALPHA-1 · price per mg
7 listings · unflagged vendors first · Listings data last updated October 2026
Best price per mg: Adria Science 10 mg at €6.50/mg. Kits go lower — €4.00/mg, sold only in multi-vial packs.
5 mg
2 listings01
Particle PeptidesVID-PARTICLE · SK dispatch
5 mg
96%
COA PDF (method unstated)
In stock
2–7 days
€8.20/mg
€41
02
SwissChemsVID-SWISSCHE · US dispatch · from $63.99
5 mg
99%
HPLC · third-party COA
In stock
2–3 weeks
€11.00/mg
€55
10 mg
3 listings01
Adria ScienceVID-ADRIA-SC · SI/CZ dispatch
10 mg
99.7%
Liquilabs per-lot COA · USP<85>
In stock
Dispatch 1–3 days
€6.50/mg
€65
02
Direct Peptides EUVID-DIRECT-P · UK network · from £56.25
10 mg
99%
HPLC badge only (no reports published)
In stock
10–14 days
€6.50/mg
€65
03
PEAK_PEPTIDEVID-PEAK-PEP · AT dispatch
10 mg
99%
COA in progress (mfr ≥99%)
In stock
Dispatch 24–48 h
€8.00/mg
€80
Kits · multi-vial packs, price per vial
01
5 mgkit of 10
99%
HPLC · MS · Janoshik
In stock
3–7 days (EU warehouse)
€4.00/mg
€20≈ €200 per kit
Flagged vendors · documented, never recommended
01
CertaPeptidesVID-CERTAPEP · RO dispatch
5 mg
98%
Janoshik (selected lots)
In stock
3–7 days
€9.80/mg
€49
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 →