Sequence, molecular data, research status and testing standards for Thymosin Alpha-1, written for Canadian researchers.
Thymosin alpha-1 is a 28-amino-acid peptide first isolated from the thymus gland, an organ involved in immune system development. The synthetic version is known as thymalfasin.
Thymosin alpha-1 has been studied for decades in immune research. Synthetic thymalfasin (Zadaxin) is authorized as a prescription medicine in some countries outside North America. It is not authorized by Health Canada.
What it is: A natural chain made in the thymus, an organ that helps train the immune system.
The plain-English story: A natural chain made in the thymus, thought to help immune cells respond. It is used as a medicine in some countries under a doctor's care and has been studied for infections and cancer care. It is not approved in Canada.
What it does in the body: It is thought to help immune cells respond.
What researchers are looking at: Used as a prescription medicine in some countries. Studied for infections and cancer care.
What you may hear online: Videos often call it an immune booster.
The straight story: It is used as a medicine in some countries under doctor care. It is not authorized in Canada.
The catch (where it stands in Canada): Not an approved medicine in Canada, so nobody can legally sell it to you as one.
Educational information only. Not medical advice, and not a claim that this peptide is safe or effective for any use.
Peptide Authority summarizes published research for educational purposes only. Nothing here is medical advice or a claim that Thymosin Alpha-1 is safe or effective for any use.
| Type | Status in Canada | |
|---|---|---|
| Thymosin alpha-1 | 28 amino acids, immune research | Not authorized in Canada |
| Thymosin beta-4 | 43 amino acids, tissue research | Research compound |
| TB-500 | Synthetic fragment related to thymosin beta-4 | Research peptide |
See the TB-500 profile or compare peptides side by side.
Thymosin alpha-1 is not authorized by Health Canada as a drug, so it cannot legally be sold for human or animal use in Canada. This is general information, not legal advice. Read how peptides are regulated in Canada.
Thymosin alpha-1 is a 28-amino-acid peptide first isolated from the thymus gland, an organ involved in immune system development. The synthetic version is known as thymalfasin. It is also known as Thymalfasin, Zadaxin, Ta1.
Thymosin alpha-1 is not authorized by Health Canada as a drug, so it cannot legally be sold for human or animal use in Canada. This is general information, not legal advice.
It is not authorized for human or animal use in Canada, and products sold online cannot be verified without a lot-matched third-party Certificate of Analysis.
No. Thymosin alpha-1 and thymosin beta-4 are different peptides with different sequences, even though both were first found in thymus tissue. TB-500 is a fragment related to thymosin beta-4.
29 + 5 amino acids · 3367.9 / 711.9 g/mol
29 amino acids (modified) · 3647.2 g/mol
This profile is for information only and is not medical advice. This profile is educational only and is not medical advice. See our full disclaimer.