Thymosin Alpha-1 Buyer Guide: Benefits, Price Per Mg, Dosage Evidence, and COA Checks

Short Answer: Compare the 10 Mg Vial on Proof, Then Price Per Mg

Thymosin Alpha-1, also called T alpha 1, TA-1, Tα1, and thymalfasin, is a 28-amino-acid immune-modulation peptide with substantially more human clinical context than many research peptides.

The strongest current PeptidePub price checkpoint is Ascension Peptides 10 mg at $71 list and $35.50 after the confirmed 50% PEPTIDEPUB code. That is $3.55 per mg before shipping. Compare the live table at /prices/thymosin-alpha-1, verify the seller at /vendors, and review the full peptide profile at /peptides/thymosin-alpha-1 before checkout.

What Thymosin Alpha-1 Is and Why Buyers Research It

Thymosin Alpha-1 was originally isolated from thymic tissue. Thymalfasin is its synthetic analog. A 2020 comprehensive review describes activity involving Toll-like receptors 2 and 9, dendritic cells, T-cell maturation, natural killer cells, antigen presentation, and cytokine signaling.

That makes TA-1 relevant to research on immune signaling, immune restoration, vaccine response, infections, and oncology-adjacent immune function. The review also reports that synthetic thymalfasin has been approved in more than 35 countries for hepatitis B and C and as an immune enhancer in other settings. That unusually long clinical history is a key reason buyers compare TA-1 differently from newer peptide categories.

Human Dosage Evidence and Vial Math

A common human-study and pharmaceutical benchmark is 1.6 mg subcutaneously twice weekly. This is an evidence benchmark, not an individualized protocol.

At 1.6 mg per study amount, a 10 mg vial contains 6.25 theoretical amounts before handling loss. Six full 1.6 mg amounts use 9.6 mg and leave 0.4 mg. At two study amounts weekly, nominal use is 3.2 mg per week, so one 10 mg vial represents 3.125 theoretical weeks of content.

At Ascension’s $35.50 effective 10 mg price, peptide cost is about $5.68 per 1.6 mg amount and $11.36 per nominal 3.2 mg week, before shipping and handling loss. Use /tools/cost-per-dose to run the same calculation against other vial sizes and current vendor prices.

Reconstitution changes concentration, not the total peptide in the vial. Use /tools/reconstitution-calculator once you know the vial amount and BAC-water volume. It calculates concentration and U-100 syringe-unit math so you can compare the intended research amount with the vial economics without guessing.

Current Thymosin Alpha-1 Prices Compared

The PeptidePub catalog snapshot checked July 30, 2026 includes 11 current offers:

• Ascension: 10 mg for $71
• AMP: 5 mg for $35 or 10 mg for $62
• Atomik: 10 mg for $65
• EZ: 10 mg for $58
• Glacier: 10 mg for $63.99
• Level Up: 10 mg for $60
• MD Innovative: 10 mg for $140
• Mile High: 10 mg for $69.99
• Valkyrie: 10 mg for $65
• World Wide: 10 mg for $394
• Valor: 10 mg for $54.99

After verified codes, Ascension leads at $35.50 total and $3.55 per mg after 50% off. Valor is about $49.49 and $4.95 per mg after 10% off. EZ is $52.20 and $5.22 per mg after 10% off. Level Up is $54.00 and $5.40 per mg after 10% off.

Atomik is $55.25 and about $5.53 per mg after the 15% PEPTIDEPUB15 code. AMP 10 mg is $55.80 and $5.58 per mg after 10% off. Glacier is about $57.59 and $5.76 per mg after 10% off. Valkyrie is $58.50 and $5.85 per mg after 10% off.

AMP’s 5 mg vial is $31.50 after its 10% code, but the smaller vial costs $6.30 per mg. That is higher than AMP’s 10 mg vial at $5.58 per mg, showing why the cheapest checkout total is not automatically the best value.

Mile High is about $62.99 and $6.30 per mg after 10% off. MD Innovative is $126 and $12.60 per mg after the 10% PEPTIDEPUB10 code. World Wide is $374.30 and $37.43 per mg after 5% off.

Prices, stock, shipping, and codes can change. Use /prices/thymosin-alpha-1 for the current comparison rather than treating this snapshot as permanent. Then add shipping and compare the final delivered price per mg.

Vendor Testing and COA Proof

Current vendor-level testing-depth checkpoints are World Wide at 7 of 7 PeptidePub fields; Ascension, Atomik, Glacier, and Mile High at 6 of 7; Valor at 5 of 7; AMP, EZ, Valkyrie, and MD Innovative at 3 of 7; and Level Up at 2 of 7.

Those scores describe published testing coverage, not proof for every current TA-1 vial. Require a lot-matched report for the exact product you plan to buy.

Named labs in the catalog include Kovera Labs for Ascension, Atomik, Glacier, Mile High, and World Wide; AccumarkLabs for Valor; Janoshik for AMP and EZ; Horizon Analytical for Valkyrie; Vanguard Laboratory for Level Up; and Analytical Formulations for MD Innovative.

The COA should match Thymosin Alpha-1, thymalfasin, or TA-1 identity, the 28-residue target, vial size, batch, named lab, report date, and verifiable report ID. Look for net content, purity, and identity. Broader sterility, endotoxin, heavy-metal, and contaminant results add useful depth when published.

Use How to Read a Peptide COA Before You Buy for the full workflow. The Peptide COA Underfilled Batch Guide explains why a high purity result does not prove the vial contains its labeled milligrams. Compare vendor evidence at /vendors and see how PeptidePub scores the seven fields at /methodology.

How to Choose the Best Buy

Use this order: confirm exact TA-1 identity and vial size, match the COA to the lot, compare effective price per mg after code, add shipping, calculate cost per planned study amount, and choose the strongest verified value.

Ascension currently combines the price lead with a 6 of 7 vendor testing profile. World Wide has the deepest 7 of 7 profile but is far more expensive in this snapshot, so compare whether the exact lot evidence justifies that premium.

Valor is the second-lowest effective 10 mg checkpoint at about $4.95 per mg and has a 5 of 7 vendor testing profile. EZ is close at $5.22 per mg with 3 of 7 fields. After proof and value checks pass, /go/bodybuilding-health is the verified affiliate route when that seller fits the buyer’s needs.

FAQ

Is Thymosin Alpha-1 the same as TB-500?

No. Thymosin Alpha-1 is a 28-amino-acid immune-modulation peptide. TB-500 is associated with thymosin beta-4 and the recovery and tissue-repair research lane. See /peptides/tb-500 for that distinct profile.

What names should match on the label and COA?

Thymosin Alpha-1, T alpha 1, TA-1, Tα1, and thymalfasin can refer to the same 28-amino-acid target. The exact sequence, batch, vial amount, and report still need to match.

What is the common human-study dosage benchmark?

A widely used clinical and pharmaceutical benchmark is 1.6 mg twice weekly. That is 3.2 mg of nominal weekly study use. It provides a useful reference for comparing vial size and cost, without turning the published benchmark into an individualized protocol.

What is a competitive price per mg?

In the July 30 snapshot, verified-code checkpoints start at $3.55 per mg at Ascension, followed by about $4.95 at Valor and $5.22 at EZ, before shipping.

Is a 5 mg vial cheaper than a 10 mg vial?

It can have a lower checkout total without offering better value. AMP’s 5 mg vial is $31.50 after the same 10% code and costs $6.30 per mg. AMP’s 10 mg vial is $55.80 after code and costs $5.58 per mg. Compare all tracked offers at /prices, then use Best Research Peptide Vendors for Third-Party Testing to weigh seller proof alongside price.

Bottom Line

Thymosin Alpha-1 stands out as an immune-research peptide with a long clinical history, a recognizable 1.6 mg twice-weekly study benchmark, and enough tracked vendors to make price-per-mg comparison worthwhile.

The current value leader is Ascension 10 mg at $35.50 after the confirmed 50% PEPTIDEPUB code, or $3.55 per mg. The next checks are the exact lot COA, vendor testing depth, shipping, and cost per planned research amount.

Build the PeptidePub reflex before every purchase:

• Check the current table at /prices/thymosin-alpha-1.
• Verify the exact lot and seller at /vendors.
• Review the peptide guide at /peptides/thymosin-alpha-1.
• Apply the current verified code.
• Buy the strongest verified value after shipping and per-mg math.