Immune-modulation research
Thymosin Alpha-1.
5 vendors · $64–139
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
5 listings · unflagged vendors first · Listings data last updated October 2026
Best price per mg: Hydro Research 10 mg at $6.50/mg.
5 mg
2 listings02
Core PeptidesVID-CORE-PEP · US dispatch
5 mg
99.22%
HPLC-UV/VIS identity + purity · Vanguard Laboratory, lot C74186, reported 2026-08-21, 99.22% · no mass-spec identity or endotoxin resultVanguard Laboratory · HPLC-UV/VIS · Batch C74186 · Aug 21, 2026 · Verify COA ↗
In stock
Same-day dispatch
$16.20/mg
$81
10 mg
3 listings01
Hydro ResearchVID-HYDRO-RE · US dispatch · lot content 12.42 mg/10 mg
10 mg
99.16%
HPLC (Janoshik, lot HYDRO6S1HTG1, Nov 2025) · sterility
In stock
Same/next-business-day dispatch · FedEx 2-Day
$6.50/mg
$65
02
Direct PeptidesVID-DIRECT-P · US dispatch · single vial
10 mg
99.42%
UPLC-MS + endotoxin (Horizon Analytical, lot DPS-9585603)
In stock
UPS Ground 2–5 business days (free)
$9.90/mg
$99
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 →