from$60
Bioregulators · SKU T-20
Testagen 20 mg
Peptide bioregulator studied in endocrine research models.
$ 60 per 20 mg vial · free shipping over $300
In stock · ships same day on orders before 2pm ET
Purity (HPLC-UV)≥99.0% on lot TES-2609-Y
IdentityConfirmed by LC-MS
FormLyophilized powder, sealed vial
Endotoxin< 0.5 EU/mg (LAL)
Storage-20°C sealed · 2-8°C reconstituted
CertificateView COA for TES-2609-Y →
Volume pricing, applied automatically in the cart
| Quantity | Per unit | You save |
|---|---|---|
| 3 to 4 units | $55.80 | 7% |
| 5 to 9 units | $53.40 | 11% |
| 10+ units | $50.40 | 16% |
Verify lot TES-2609-Y in the COA library · This month's lot report
Ships same day on orders before 2pm ET. For laboratory research use only. Not for human or animal consumption.
Frequently bought together
Supplies researchers add to this order
Reconstitution solution30 mL · $25
Reconstitution kitKit · $49.99
What is Testagen?
Testagen is the tetrapeptide lysyl-glutamyl-aspartyl-glycine from the Khavinson bioregulator series, studied in endocrine research models. Pepstral supplies it as a lyophilized powder for in-vitro laboratory research only.
What is Testagen studied for?
- Endocrine tissue research models
- Short-peptide bioregulator comparisons
- Gene-expression studies
- Ageing-model research
All applications above are in-vitro or preclinical research contexts. Testagen is sold for laboratory research only and is not for human or animal use.
What does the certificate for lot TES-2609-Y show?
Every lot of Testagen is tested by an independent US laboratory before it is listed. The report for lot TES-2609-Y is in the COA library and the lot number printed on the vial matches it. The current results:
| Test | Method | Lot TES-2609-Y result |
|---|---|---|
| Identity | LC-MS | Matches the calculated mass for the sequence |
| Purity | HPLC-UV, 220 nm | 99.0% |
| Net peptide content | Amino acid analysis | Stated per vial on the certificate |
| Endotoxin | LAL, chromogenic | < 0.5 EU/mg |
| Sterility | USP <71> | Pass |
How is Testagen handled and stored?
Sealed vials are stored at -20°C away from light and keep for 24 months. To reconstitute, add bacteriostatic water slowly down the inside wall of the vial and swirl until clear; never shake. Once in solution, keep at 2 to 8°C and use within the 28-day window on the certificate. The reconstitution guide covers volumes and syringe units and the concentration table gives the numbers for this vial.
Frequently asked questions
What is the sequence?
Lys-Glu-Asp-Gly, one residue different from several others in the series, which is what the series' structure-activity work turns on.
How independent is the literature?
Largely from one research group. Independent replication is limited.
Is Testagen for human use?
No. Every product on this site is sold for in-vitro laboratory research only and is not for human or animal consumption, diagnostic or therapeutic use.
