Immune-modulation research
Thymosin Alpha-1.
6 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
6 listings · unflagged vendors first · Listings data last updated October 2026
Best price per mg: Hydro Research 10 mg at $6.50/mg. Kits go lower — $4.60/mg, sold only in multi-vial packs.
5 mg
2 listings02
Core PeptidesVID-CORE-PEP · US dispatch
5 mg
99%
Per-product COA (method unstated)
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
03
Vyal LabsVID-VYAL-LAB · US dispatch · lot content 11.81 mg/10 mg
10 mg
99.83%
HPLC · MS · Accurate Test Labs (per-lot COA)
In stock
Same-day dispatch (before 2 PM EST) · 2–3 days
$13.90/mg
$139
Kits · multi-vial packs, price per vial
01
5 mgkit of 10
99%
HPLC · MS · Janoshik
In stock
3–7 days
$4.60/mg
$23≈ $230 per kit
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 →