TESA
Growth-hormone-releasing factor analog. Lyophilized powder, 2mg, 5mg or 10mg per vial.

Available strengths
| Strength | Purity | Price | Availability | COACertificate |
|---|---|---|---|---|
| TESA 2mgRestocking | — | $22.99 | Restocking | — |
| TESA 5mgRestocking | — | $39.99 | Restocking | — |
| TESA 10mgIn stock | — | $88.00 | In stock | Certificate of analysis: Janoshik · Jul 2026 |
1 of 3 strengths ship today.
Quick answers
What is TESA?
Growth-hormone-releasing factor analog. Lyophilized powder, 2mg, 5mg or 10mg per vial.
Is TESA third-party tested?
Yes. Janoshik Analytical, an independent laboratory, tested TESA 10mg. The certificate of analysis is published on the product page with the lab's verification key, so it can be checked against the laboratory's own record. 2 other strengths don't have a published certificate yet.
What strengths of TESA are available, and what do they cost?
TESA comes in 2mg for $22.99 (restocking), 5mg for $39.99 (restocking) and 10mg for $88.00.
How fast does TESA ship?
Orders placed before 2 PM Central ship the same business day, tracked, in insulated packaging. Standard U.S. shipping is free on orders over $300, and international shipping is a flat $50. 1 of 3 strengths is in stock right now.
How should TESA be stored?
Keep the lyophilized vial sealed, dry and away from light. For long-term storage of lyophilized material, −20 °C is the common working standard; 2–8 °C refrigeration suits material in active use. Let a cold vial come to room temperature before opening it, so moisture doesn't condense inside.
Storage guide →Is TESA for human use?
No. TESA is supplied strictly for in-vitro laboratory research. It is not for human or veterinary use, and not for therapeutic, diagnostic or clinical application. Buyers must be 21 or older.
Compound identifiers
- Molecular weight (free base)
- 5135.86 g/mol
- Sequence length
- 44 amino acids
- CAS number
- 218949-48-5
- Formula
- C221H366N72O67S
- Source
- Synthetic
Supplied for laboratory research use only. Not for human or veterinary use, and not for therapeutic, diagnostic or clinical application.
Handling and documentation
- How to read a peptide certificate of analysis
- HPLC and mass spectrometry: what each assay actually proves
- Net peptide content, counter-ions, and why a milligram isn't a milligram
- What “research use only” actually means
