Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
A zinc-dependent nonapeptide (pGlu-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn) secreted by thymic epithelial cells. NOT to be confused with Thymalin (Russian bovine thymus extract) or Thymosin alpha-1 (a different 28-aa thymic peptide). Research/investigational only — not FDA-approved.
Lowest Price
$39.99
Highest Price
$185.00
Average Price
$86.59
Potential Savings
72%
across 5 options
1 of 5 vendors are lab-verified for Thymulin
We cross-check each vendor's Certificate of Analysis against the issuing lab's own verification portal — so “cheapest” isn't the only signal.
Best price trend
Lowest $/mg for Thymulin · last 43 days
$1.85/mg
▼ 56% vs 43d ago
Trust grade first, cheapest within grade
vial · 10mgskyepeptides.com· price updated today
Lot TYM25-10-001· tested 2025-09-03
$5.90/mg
69% more per mg
vial · 10mgbiolongevitylabs.com· price updated today
Lot 4-3-46031· tested 2026-02-05
$6.50/mg
72% more per mg
vial · 20mgsimplepeptide.com· price updated today
$4.20/mg
56% more per mg
vial · 100mgpolarispeptides.com· price updated today
$1.85/mg
vial · 10mgamc-essentials.com· price updated today
$4.00/mg
54% more per mg
vial · 10mgsouthernaminos.com· price updated today
$99.00−25%
$74.25$7.42/mg
75% more per mg
Check formulation: Lyophilized powder requires reconstitution before use. Pre-mixed solutions are more convenient but may have a shorter shelf life and higher prices.
Compare per-mg cost: Different strengths and quantities make direct price comparison difficult. Calculate the per-milligram cost to find the true best value.
Verify COAs: Look for vendors that publish per-batch Certificates of Analysis from named, accredited labs. Every vendor on this page is verified for endotoxin testing — not just HPLC purity.
Bach and Dardenne originally characterized FTS/thymulin and its absolute zinc dependency (Bach & Dardenne, Med Oncol Tumor Pharmacother 1989, PMID 2657247). Prasad et al. (J Clin Invest 1988, PMID 3262625) showed that serum thymulin activity falls in human zinc deficiency and recovers with zinc supplementation. Mocchegiani et al. (Int J Immunopharmacol 1995, PMID 8582782) demonstrated partial reversal of thymic involution with zinc in aged mice. Dardenne & Pleau reviewed zinc-thymulin interactions (Met Based Drugs 1994, PMID 18476235). Safieh-Garabedian et al. (Br J Pharmacol 2002, PMID 12110619) reported analgesic/anti-inflammatory activity of a thymulin-related peptide in rats. There are NO large, modern RCTs of exogenous thymulin in humans; clinical use is experimental.
This platform provides informational tools only, not medical advice.
Prices verified as of June 2026. Actual prices may vary. For research use only.
Prices are estimates and may vary. For research use only. We may earn a commission on purchases through affiliate links. Not medical advice.
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