Vendor-neutral comparison

Peptide reference

Thymosin Alpha-1

Prices checked September 10, 2026

Research synopsis

Thymosin Alpha-1 is a 28-amino-acid peptide studied for its role in immune-cell signaling and host-response pathways. Clinical literature exists for regulated products in some countries, but vendor research vials are not approved medicines and cannot be treated as equivalent products.

Vendor listings

Images, sizes, prices, and COA access.

Prices exclude shipping and taxes. Subscription or volume pricing may differ from the one-vial price shown here.

Vendor stock is checked at 6:00 AM, 12:00 PM, and 6:00 PM Pacific every day and updated accordingly.

Image supplied by Alpha Pro Peptides

Alpha Pro Peptides

Alpha Pro Thymosin Alpha-1

$29.99–$39.99

BOGOBuy one eligible product and get one freeApplies automatically; confirm the free item in the Alpha Pro cart.

5 mg: $29.99BOGO: 2 vials totalEst. $15.00 per vial at the displayed price
10 mgBest price: $39.99BOGO: 2 vials totalEst. $20.00 per vial at the displayed price
COA access: Public download

Public 5 mg lot certificate (lot AP-4692117); Alpha Pro currently labels the 10 mg certificate as coming soon

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Add to cart at Alpha Pro Peptides Open COA library

Feel Good Peptides Thymosin Alpha-1 product vial

Image supplied by Feel Good Peptides

S7SCIENCESEnter at checkout

Feel Good Peptides

Thymosin Alpha 1

$48.75

~~Vendor price $65.00~~

10 mg: $48.75~~Vendor price $65.00~~
COA access: Public download
Coupon: S7SCIENCES

Coupon required for the displayed price

Enter S7SCIENCES at checkout to receive 25% off.

Public, lot-matched 10 mg purity and endotoxin records; the linked PDF is the current purity certificate

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Add to cart at Feel Good Peptides Open COA library

More vendor prices3 additional partners

S7SCIENCESEnter at checkout

Eon PeptidesCurrent one-unit listing

10 mg$76.50~~Vendor price $85.00~~BOGO: 2 vials totalEst. $38.25 per vial at the displayed S7 priceConfirm the offer in the vendor cart.

Coupon required for the displayed price

Enter S7SCIENCES at checkout to receive 10% off.

BOGOBuy 1 Get 1 Free: select two eligible items; the lower-priced item in each pair is freeConfirm the offer in the vendor cart.

Listing details

Enter S7SCIENCES at checkout for 10% off eligible paid items, including orders with automatic Buy 1 Get 1 Free. Select two eligible items for BOGO; the lower-priced item in each pair is free. Current base prices already include Eon's price adjustment. Confirm the code, free items, shipping, and final total in the vendor cart.

Public downloadVendor-published Freedom Diagnostics reference report for Thymosin Alpha-1 10 mg, lot THYMA10-042026-1. Request documentation linking the current supplied batch to this report.

View Eon Peptides Open COA library

NextGenPepsThymosin A-1Current one-unit listing

10 mg$84.00

Listing details

Current one-unit prices reflect NextGenPeps' public 20% sitewide sale. S7SCIENCES is recognized for referral attribution, but the current guest cart did not apply a separate customer discount; confirm current pricing in the vendor cart.

Public downloadPublic exact 10 mg certificate in the official NextGenPeps record

View NextGenPeps Open COA library

American Peptides Thymosin Alpha-1 product

S7SCIENCES10Enter at checkout

American PeptidesCurrent one-unit listing

10 mg$112.50~~Vendor price $125.00~~BOGO: 5 vials totalEst. $75.00 per vial before any separate S7 codeConfirm the offer in the vendor cart.

Coupon required for the displayed price

Enter S7SCIENCES10 at checkout to receive 10% off.

If already applied by the link, confirm the code in your cart.

Public downloadPublic 10 mg lot certificate from Bioviridian Inc. (lot TA110-0318)

View American Peptides Open COA library

Vendor documents

COAs are supplied by the vendor or its testing laboratory. S7 Sciences labels access but does not independently authenticate a lot.

Matched value

Each vendor's displayed vial strength or bottle volume is shown beside its current one-unit price.

Research boundary

This comparison is not a recommendation for personal use and does not address clinical safety, sterility, or effectiveness.

Research-use reference only

S7 Sciences is not the seller.

Orders, payments, fulfillment, returns, product claims, and customer support are handled by the selected third-party vendor. Nothing on this page is medical, dosing, diagnostic, or therapeutic guidance. Research summaries describe commonly studied mechanisms and do not establish safety or effectiveness. Linked materials are not intended for human or veterinary use.