How do I verify the COA?
Every batch is independently tested by Janoshik Analytical. Each product links straight to the lab's own record, so you can check the exact purity figure yourself before you buy — nothing to take on trust.

Format
Sealed research vial
Trust signal
COA-backed inventory
A$119.99
Select options below
Size
Select one
Select your preferred options to continue.
Fast AU dispatch, tracked delivery, and documentation-ready inventory.
Why labs buy from APL
High purity, consistent supply, and fast AU-wide dispatch.
Certificate of Analysis
COA library
Browse the current COA library and available product documentation.
Structural class
TA-1 is thymosin alpha-1 (Tα1), a 28-amino acid N-terminally acetylated thymic peptide that acts as an endogenous TLR2 and TLR9 agonist.
Pathways studied
Tα1 is naturally secreted by thymic epithelial cells and has been characterised as an agonist at Toll-like receptors 2 and 9 (TLR2, TLR9) in dendritic cell and macrophage assay models, activating downstream MyD88-NF-κB and MAPK signalling pathways. In T-lymphocyte assays it is studied for enhancement of CD4+ T-helper cell differentiation and NK cell cytotoxic activity. Unlike many immunomodulatory peptides, Tα1 is defined by an N-terminal acetyl group on its Ser1 residue — loss of this modification substantially reduces biological activity in receptor-based assays, making N-terminal integrity a critical quality attribute to verify before functional experiments.
Typical research focus
Research panels using Tα1 commonly examine innate-to-adaptive immune signalling transitions, dendritic cell maturation markers (MHC-II, CD80/86 upregulation), and cytokine secretion profiles (IFN-α, IL-12) in primary PBMC or monocyte-derived dendritic cell models. It is also used as a positive control in TLR agonism reporter assays.
For laboratory research use only. Not for human or veterinary use, and not for human consumption. Intended for in-vitro and pre-clinical research settings only.
How to read a certificate of analysis, what purity actually measures, and how research peptides are stored and independently verified.
The questions researchers ask most.
Every batch is independently tested by Janoshik Analytical. Each product links straight to the lab's own record, so you can check the exact purity figure yourself before you buy — nothing to take on trust.
Keep vials sealed, dry, and out of direct light. Lyophilised (freeze-dried) peptides are stable at -20 °C; once reconstituted, store as noted on the product label. Full handling notes sit on every product page.
Order by 2pm for same-day dispatch from our Melbourne warehouse, otherwise the next business day, with tracked delivery Australia-wide. No customs, no border delays — it's already in the country.
More in the full FAQ · Rated 4.6★ on Trustpilot
Researchers who bought TA-1 also stock these.
It brings together 1 labelled variant: 10mg, current pricing context, stock visibility, COA access, and internal links to related catalogue pages so a laboratory buyer can review the material from a single reference URL.
TA-1 is generally discussed as thymosin alpha-1 (Tα1), a 28-amino acid N-terminally acetylated thymic peptide that acts as an endogenous TLR2 and TLR9 agonist. The most relevant background is sequence behaviour, pathway or receptor context where documented, and analytical consistency under controlled laboratory conditions.
Use the label, COA, and internal SOPs as the primary guide. In general, store the material under controlled laboratory conditions, minimise avoidable environmental exposure, and keep variant tracking records current.
This page links the broader COA library when a product-specific document is not attached. Laboratories should use the published documentation set that is currently available for the listing.
No. The page should be interpreted strictly in a research and laboratory context. It does not provide dosage guidance, treatment claims, or human or animal use instructions.