What Thymosin Alpha-1 is
Thymosin alpha-1 is a 28 amino acid peptide originally isolated from thymus tissue. Despite the shared family name it is unrelated in sequence and function to thymosin beta 4, from which TB-500 derives. The two are separate molecules that happen to share a naming lineage.
How the pen is supplied
Solution in a sealed 3 ml pen graduated in 300 dial units.
Pen specification
| Class | Thymic peptide, 28 amino acids |
| Also known as | Ta1, Thymalfasin |
| Content | 10 mg |
| Fill volume | 3 ml |
| Dial graduation | 0.01 ml per unit |
| Total dial units | 300 |
| Per dial unit | 33 mcg |
| Cost per mg | £6.50 per mg |
Milligrams per dial unit and cost per milligram are calculated from the pen strength, its fill volume and the current live price. Every SerenQ pen is graduated at 0.01 ml per unit.
Verification
Independent HPLC per batch, identifier printed on the pen.
- SerenQ Thymosin Alpha-1 10mg Peptide Penout of stock£65
Availability checked 2026-09-04. The product page carries live stock.
Common questions
Is this related to TB-500?
Only by name. TB-500 derives from thymosin beta 4. Thymosin alpha-1 is a different peptide with a different sequence and function.