Thymosin Alpha-1 reconstitution calculator

Thymosin Alpha-1 at a glance

1.6mg vial + 1mL BAC water = 100 units = 1.6mg — Frequency: 2x weekly — Best taken: any time, non-fasted

Full Thymosin Alpha-1 dosing reference — reconstitution per vial size, dose-to-units table, side effects and sources.

What it does

• A thymic hormone that helps regulate immune function, particularly T-cell activity.
• FDA-approved in some countries (as Zadaxin) for hepatitis B/C and as a vaccine adjuvant; not FDA-approved in the US.
• Well-established mechanism backed by real clinical use abroad, unlike most other experimental entries.

Boosts T-cell/immune activity, which works directly against deliberate immunosuppression. Considered contraindicated for organ transplant recipients on anti-rejection medication, and combining it with other immunosuppressants (biologics, calcineurin inhibitors) is unstudied and should only happen under specialist supervision. Anyone on immunosuppressive therapy should talk to that prescriber before use.

Notes

The real Zadaxin label mixes to 1.6mg/mL and injects the full amount — a larger single-injection volume than most other peptides here, but that matches the actual product (100 units, twice weekly). The 5mg and 10mg compounded-vial options are capped at 3mL BAC water instead of diluted further, so they come out more concentrated (fewer units per dose) than the real single-dose vial.

Side Effects

• Injection site burning or itching, under 30 minutes.
• Mild flu-like symptoms: fever, nausea, malaise.
• Severe events under 1% in trials; no organ toxicity over 24 months.
• Theoretical immune over-activation in autoimmune conditions.

Thymosin Alpha-1 vial sizes and concentrations

Standard water for each Thymosin Alpha-1 vial size in the Dosify Me data, and the concentration it gives. One unit is 0.01 mL on a U-100 insulin syringe.

^* This size is conventionally mixed more concentrated rather than diluted further — fewer units per dose than smaller vials of this peptide.

Worked example for Thymosin Alpha-1

1. The example vial: 10 mg of Thymosin Alpha-1, mixed with 3.00 mL of bacteriostatic water.
2. Concentration: 10 mg ÷ 3.00 mL = 3.33 mg/mL.
3. One syringe unit is 0.01 mL, so it holds 3.33 mg/mL × 0.01 mL = 0.033 mg (33.33 mcg).
4. Example quantity: 1600 mcg = 1.6 mg.
5. Volume: 1.6 mg ÷ 3.33 mg/mL = 0.48 mL.
6. Syringe reading: 0.48 mL × 100 = 48 units.

Label numbers from the Dosify Me data, used to show the arithmetic. Not a recommendation of any quantity.

Frequently asked

How many units is 1.6 mg of Thymosin Alpha-1?

At 1.6 mg/mL (the standard mix for vials up to 1.6 mg), 1.6 mg of Thymosin Alpha-1 is 100.0 units on a 100-unit insulin syringe (1.000 mL).

How much bacteriostatic water do I add to a 1.6 mg vial of Thymosin Alpha-1?

1.00 mL, which gives 1.6 mg/mL. Larger vials hold at most 3 mL of water, so they are mixed more concentrated and need fewer units per dose.

How much bacteriostatic water do I add to a 5 mg vial of Thymosin Alpha-1?

3.00 mL, which gives 1.67 mg/mL. This size holds at most 3 mL of water, so it is mixed more concentrated and the same dose is fewer units than from a smaller vial.

How much bacteriostatic water do I add to a 10 mg vial of Thymosin Alpha-1?

3.00 mL, which gives 3.33 mg/mL. This size holds at most 3 mL of water, so it is mixed more concentrated and the same dose is fewer units than from a smaller vial.

How often is Thymosin Alpha-1 taken?

2x weekly. Any time, non-fasted Typical cycle: Labelled course: 6–12 months twice weekly; many community protocols run 8–16 weeks.

Related pages and guides

• Thymosin Alpha-1 dosing reference
• How many units is 250 mcg?
• How much bacteriostatic water for a 5 mg vial?
• U-100 vs U-50 insulin syringe for peptides
• How to track peptide doses
• All peptide guides

Other calculators

General peptide calculator · BAC water calculator · Peptide dosing chart · How to reconstitute peptides · mcg to units chart