Thymosin Alpha-1

Zadaxin

Peptide peptide SubQ FDA/EMA Label

Half-life

2 hr

Time to Peak

1 hr

Steady State

~1 days

Dose Range

0.8–3.2 mg

Frequency

Twice weekly

Overview

Naturally occurring thymic peptide approved in over 30 countries for hepatitis B and C treatment and as an immune system modulator. One of the best-characterized therapeutic peptides with extensive clinical data. Used in the peptide community for immune optimization and general wellness. Supplied as lyophilized powder requiring reconstitution.

Mechanism of Action

Modulates T-cell maturation and function, enhances dendritic cell activity, and stimulates innate and adaptive immune responses. Increases MHC class I expression on tumor cells.

Dosing Information

Route	Dose Range	Half-life	Tmax	Frequency
Subcutaneous (SubQ)	0.8–3.2 mg	2 hr	1 hr	Twice weekly, Daily

Storage & Handling

2-8C — Store lyophilized powder refrigerated. Reconstitute with provided diluent or sterile water.

Used in Regimens

1 regimen

GHK-Cu + Thymosin Alpha-1 Immune Support

GHK-Cu copper peptide combined with Thymosin Alpha-1 for immune modulation and systemic anti-ageing. TA-1 is a thymic peptide that enhances T-cell function and NK cell activity. GHK-Cu provides additional anti-inflammatory and tissue repair support. Stack used in longevity and cancer-recovery communities.

TA-1 1.6mg SubQ twice weekly (Mon/Thu).

8wk peptide

Ancillary

Data Sources

FDA Label Zadaxin (Thymosin Alpha-1) Prescribing Information

Related Tools

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