Where to Buy Thymosin Alpha-1 in 2026: 19 Lab-Tested Sellers, From $2.22/mg With a Coupon Code
Where to buy Thymosin Alpha-1: PepAssess lists Thymosin Alpha-1 at 39 vendors. As of November 12, 2026, the lowest price with a coupon code is $2.22/mg at Modern Research Peptides (code pepassess); the median across all sellers is $6.50/mg. Vendors are ranked by Evidence Score.
Prices and codes updated November 12, 2026 · re-checked every night
The synthetic version is called thymalfasin.
Learn more about Thymosin Alpha 1 from the published research: Frontiers in Cellular and Infection Microbiology (2025) · BMJ (2025) · Expert Opinion on Biological Therapy (2009)
The compounds listed on this page are for research purposes only, not for human consumption.
Thymosin Alpha-1 reconstitution calculator →
Thymosin Alpha-1 coupon codes
Prices with the code taken off · updated November 12, 2026 · re-checked every night
Every Thymosin Alpha-1 coupon code
43 Thymosin Alpha-1 sellers with a confirmed code — PepAssess's preferred vendor first, then highest Evidence Score.
| Shop | Score | Vial with code | Per mg | Per mg with code | vs typical | Code discount | Code | |
|---|---|---|---|---|---|---|---|---|
| Platinum LionPreferred | 93score | — | — | — | — | 25% off | ShopShop ↗ | |
| Rebirth LabsPreferred | 84score | 10 mg vial $107.99 with code | $12.00/mg | $10.80/mg with code | — | 10% off | ShopShop ↗ | |
| BioLongevity Labs | 100score | 10 mg vial $110.47 with code | $13.00/mg | $11.05/mg with code | — | 15% off | ShopShop ↗ | |
| Hydro Research Peptides | 100score | 10 mg vial $52 with code | $6.50/mg | $5.20/mg with code | — | 20% off | ShopShop ↗ | |
| Lost Coast Aminos | 100score | 12 mg vial $32.40 with code | $3/mg | $2.70/mg with code | — | 10% off | ShopShop ↗ | |
| Myoasis Labs | 99score | 10 mg vial $52 with code | $6.50/mg | $5.20/mg with code | — | 20% off | ShopShop ↗ | |
| Bench Grade Peptides | 95score | — | — | — | — | 10% off | ShopShop ↗ | |
| Retaone Labs | 93score | 10 mg vial $30.40 with code | $3.20/mg | $3.04/mg with code | — | 5% off | ShopShop ↗ | |
| Pinnacle Peptide Labs | 92score | 10 mg vial $50.99 with code | $6.00/mg | $5.10/mg with code | 8% below typical | 15% off | ShopShop ↗ | |
| True Peptide Labs | 92score | 10 mg vial $42.25 with code | $6.50/mg | $4.23/mg with code | — | 35% off | ShopShop ↗ | |
| PeakForce Labs | 92score | 10 mg vial $38.35 with code | $3.84/mg | $3.84/mg with code | 41% below typical | 35% off | ShopShop ↗ | |
| Ascension Peptides | 90score | 10 mg vial $35.50 with code | $7.10/mg | $3.55/mg with code | — | 50% off | ShopShop ↗ | |
| Amino Research | 89score | 10 mg vial $39.99 with code | $5.00/mg | $4.00/mg with code | 23% below typical | 20% off | ShopShop ↗ | |
| Peptide Giants | 89score | 10 mg vial $61.75 with code | $6.50/mg | $6.18/mg with code | — | 5% off | ShopShop ↗ | |
| Rivn Research | 88score | 10 mg vial $37.39 with code | $4.40/mg | $3.74/mg with code | 32% below typical | 15% off | ShopShop ↗ | |
| NOVA Labs | 88score | — | — | — | — | 10% off | ShopShop ↗ | |
| Alpha Peptides | 87score | 10 mg vial $37.30 with code | $4.14/mg | $3.73/mg with code | 36% below typical | 10% off | ShopShop ↗ | |
| My Amino Lab | 86score | 10 mg vial $58.50 with code | $6.50/mg | $5.85/mg with code | — | 10% off | ShopShop ↗ | |
| Pivot Labs Global | 86score | 10 mg vial $127.50 with code | $15/mg | $12.75/mg with code | — | 15% off | ShopShop ↗ | |
| NuLab Peptides | 84score | 10 mg vial $66.96 with code | $8.37/mg | $6.70/mg with code | — | 20% off | ShopShop ↗ | |
| Disguised Alpha | 83score | 10 mg vial $62.99 with code | $7.00/mg | $6.30/mg with code | — | 10% off | ShopShop ↗ | |
| Modern Research Peptides | 82score | 10 mg vial $22.19 with code | $3.70/mg | $2.22/mg with code | 43% below typical | 40% off | ShopShop ↗ | |
| BioInfinity | 81score | — | — | — | — | 10% off | ShopShop ↗ | |
| Stack Research | 80score | 10 mg vial $99.92 with code | $12.49/mg | $9.99/mg with code | — | 20% off | ShopShop ↗ | |
| CertaPeptides | 79score | — | — | — | — | 10% off | ShopShop ↗ | |
| Prime Peptide Solutions | 78score | 10 mg vial $62.99 with code | $7.00/mg | $6.30/mg with code | — | 10% off | ShopShop ↗ | |
| Ps Peptides | 77score | 10 mg vial $48.01 with code | $5.50/mg | $4.95/mg with code | 15% below typical | 10% off | ShopShop ↗ | |
| Great Northern Peptides | 76score | — | — | — | — | 10% off | ShopShop ↗ | |
| Zesty Rat | 75score | 10 mg vial $62.99 with code | $7.00/mg | $6.30/mg with code | — | 10% off | ShopShop ↗ | |
| Blackline Scientific | 72score | 10 mg vial $52 with code | $6.50/mg | $5.20/mg with code | — | 20% off | ShopShop ↗ | |
| GenX Peptides | 68score | 3 mg vial $37.40 with code | $14.67/mg | $12.47/mg with code | — | 15% off | ShopShop ↗ | |
| Value Research Labs | 64score | 10 mg vial $31.99 with code | $4.00/mg | $3.20/mg with code | 38% below typical | 20% off | ShopShop ↗ | |
| Voltera Sciences | 64score | 10 mg vial $50.99 with code | $6.00/mg | $5.10/mg with code | 8% below typical | 15% off | ShopShop ↗ | |
| VMAX Peptides | 63score | 10 mg vial $31.41 with code | $3.49/mg | $3.14/mg with code | 46% below typical | 10% off | ShopShop ↗ | |
| Peptuvia | 63score | 10 mg vial $205.20 with code | $22.80/mg | $20.52/mg with code | — | 10% off | ShopShop ↗ | |
| Vitality Chems | 59score | 10 mg vial $109.46 with code | $12.30/mg | $10.95/mg with code | — | 11% off | ShopShop ↗ | |
| 99PurityPeptides | 43score | — | — | — | — | 10% off | ShopShop ↗ | |
| TCORE BIOTECH | 33score | 10 mg vial $51.83 with code | $6.48/mg | $5.18/mg with code | — | 20% off | ShopShop ↗ | |
| Sparta Labs | 31score | — | — | — | — | 15% off | ShopShop ↗ | |
| Peptyds | 31score | — | — | — | — | 10% off | ShopShop ↗ | |
| Project Amino | 21score | — | — | — | — | 10% off | ShopShop ↗ | |
| Helix Bio Chem | 16score | — | — | — | — | 10% off | ShopShop ↗ | |
| XLR8 | 15score | 10 mg vial $71.99 with code | $9.00/mg | $7.20/mg with code | — | 20% off | ShopShop ↗ |
Where to buy Thymosin Alpha-1: the short answer
What is the lowest Thymosin Alpha-1 price with a coupon code?
As of November 12, 2026, the lowest Thymosin Alpha-1 price PepAssess found with a coupon code is at Modern Research Peptides: $2.22 per mg with code pepassess (40% off; $3.70 per mg before the code). Prices are re-checked every night. Modern Research Peptides coupon code
What is the best Thymosin Alpha-1 coupon code?
As of November 12, 2026, the biggest Thymosin Alpha-1 coupon code PepAssess has confirmed is PEPASSESS50OFF for 50% off at Ascension Peptides, which brings it to $3.55 per mg. PepAssess lists each code with its discount and the seller's Evidence Score, based on lab reports confirmed with the testing labs. Ascension Peptides coupon code
Where can I buy lab-tested Thymosin Alpha-1?
As of November 12, 2026, PepAssess lists 39 online vendors selling Thymosin Alpha-1. 19 of them publish a Thymosin Alpha-1 lab report that the testing lab confirmed on its own records, and 8 of those cover both purity (HPLC and mass spec) and toxicity (endotoxin or sterility). The highest-scoring vendors with a lab-confirmed Thymosin Alpha-1 report are BioLongevity Labs (100/100), Hydro Research Peptides (100/100) and Lost Coast Aminos (100/100). Compare all 39 Thymosin Alpha-1 vendors on PepAssess
What is the best Thymosin Alpha-1 vendor?
PepAssess ranks Thymosin Alpha-1 vendors by Evidence Score (0–100): what each vendor documents — lab reports confirmed by the labs, how often it tests, business transparency and buyer protection. As of November 12, 2026, the top-scoring Thymosin Alpha-1 vendors are BioLongevity Labs (100/100), Hydro Research Peptides (100/100) and Lost Coast Aminos (100/100) — all three with a lab-confirmed Thymosin Alpha-1 report.
What is the cheapest Thymosin Alpha-1 per mg?
The lowest Thymosin Alpha-1 price PepAssess found is $3/mg at Lost Coast Aminos; the median across vendors is $6.50/mg (as of November 12, 2026). Among vendors with a lab-confirmed Thymosin Alpha-1 report, the lowest is $3/mg at Lost Coast Aminos. Prices come from each vendor's own store and exclude shipping and discounts.
Thymosin Alpha-1 cost per week
What one 10 mg vial of Thymosin Alpha-1 costs per week of research, at the lowest one-vial price with a coupon code: $22.19 at Modern Research Peptides (code pepassess, $2.22/mg), as of November 12, 2026.
| One vial used over | Cost per week |
|---|---|
| 2 weeks | $11.10 |
| 4 weeks | $5.55 |
| 8 weeks | $2.77 |
Lab-confirmed Thymosin Alpha-1 reports
19 of 39 sellers publish a Thymosin Alpha-1 lab report. 19 have one the testing lab confirmed on its own records; 8 of those cover both purity (HPLC + mass-spec identity) and toxicity (endotoxin or sterility). Those covering both are listed first, then by Evidence Score.
| Vendor | Purity | Toxicity | Latest | Per mg | Code | Score | |
|---|---|---|---|---|---|---|---|
 Lost Coast Aminos | Purity ✓↗ | Toxicity ✓↗ | Jul 2026 | $3/mg | 10% off | 100score | ShopShop ↗ |
 Bench Grade Peptides | Purity ✓↗ | Toxicity ✓↗ | Apr 2026 | — | 10% off | 95score | ShopShop ↗ |
 Pinnacle Peptide Labs | Purity ✓↗ | Toxicity ✓↗ | Sep 2026 | $6.00/mg | 15% off | 92score | ShopShop ↗ |
| Ascension Peptides | Purity ✓↗ | Toxicity ✓↗ | May 2026 | $7.10/mg | 50% off | 90score | ShopShop ↗ |
 NOVA Labs | Purity ✓↗ | Toxicity ✓↗ | Aug 2026 | — | 10% off | 88score | ShopShop ↗ |
 Rebirth Labs | Purity ✓↗ | Toxicity ✓↗ | Sep 2026 | $12.00/mg | 10% off | 84score | ShopShop ↗ |
 Disguised Alpha | Purity ✓↗ | Toxicity ✓↗ | Jul 2026 | $7.00/mg | 10% off | 83score | ShopShop ↗ |
 Ps Peptides | Purity ✓↗ | Toxicity ✓↗ | — | $5.50/mg | 10% off | 77score | ShopShop ↗ |
| BioLongevity Labs | Purity ✓↗ | Toxicity – | Nov 2025 | $13.00/mg | 15% off | 100score | ShopShop ↗ |
 Hydro Research Peptides | Purity – | Toxicity – | Nov 2025 | $6.50/mg | 20% off | 100score | ShopShop ↗ |
 Myoasis Labs | Purity ✓↗ | Toxicity – | Jun 2026 | $6.50/mg | 20% off | 99score | ShopShop ↗ |
 PeakForce Labs | Purity ✓↗ | Toxicity – | Dec 2025 | $3.84/mg | 35% off | 92score | ShopShop ↗ |
 Amino Research | Purity ✓↗ | Toxicity – | Jun 2026 | $5.00/mg | 20% off | 89score | ShopShop ↗ |
 Peptide Giants | Purity ✓↗ | Toxicity – | Jul 2026 | $6.50/mg | 5% off | 89score | ShopShop ↗ |
 CertaPeptides | Purity – | Toxicity – | — | — | 10% off | 79score | ShopShop ↗ |
 Great Northern Peptides | Purity ✓↗ | Toxicity – | May 2026 | — | 10% off | 76score | ShopShop ↗ |
 Zesty Rat | Purity – | Toxicity – | Jul 2026 | $7.00/mg | 10% off | 75score | ShopShop ↗ |
| Blackline Scientific | Purity ✓↗ | Toxicity – | Aug 2026 | $6.50/mg | 20% off | 72score | ShopShop ↗ |
 Value Research Labs | Purity – | Toxicity ✓↗ | Jul 2026 | $4.00/mg | 20% off | 64score | ShopShop ↗ |
| # | Vendor | Doses (mg) | From | Best $/mg | Evidence score ⓘ | |
|---|---|---|---|---|---|---|
| 1 | 10 | from $129.97 ↗ | $13.00/mg | 100score | Shop | |
| 2 | — | — | — | 93score | Shop | |
| 3 | 10 | from $65 ↗ | $6.50/mg | 100score | Shop | |
| 4 | 10 | from $59.99 ↗ | $6.00/mg | 92score | Shop | |
| 5 | 10 | from $71 ↗ | $7.10/mg | 90score | Shop | |
| 6 | 5, 10 | from $43.99 ↗ | $4.40/mg | 88score | Shop | |
| 7 | 5 | — | — | 95score | Shop | |
| 8 | 10 | from $49.99 ↗ | $5.00/mg | 89score | Shop | |
| 9 | 10 | from $65 ↗ | $6.50/mg | 99score | Shop | |
| 10 | 10 | from $119.99 ↗ | $12.00/mg | 84score | Shop | |
| 11 | 12 | from $36 ↗ | $3/mg | 100score | Shop | |
| 12 | 5, 10 | from $69.99 ↗ | $7.00/mg | 83score | Shop | |
| 13 | — | from $36.99 ↗ | $3.70/mg | 82score | Shop | |
| 14 | 10 | — | — | 88score | Shop | |
| 15 | 10 | from $124.90 ↗ | $12.49/mg | 80score | Shop | |
| 16 | — | — | — | 81score | Shop | |
| 17 | 10 | from $69.99 ↗ | $7.00/mg | 78score | Shop | |
| 18 | 10 | from $41.44 ↗ | $4.14/mg | 87score | Shop | |
| 19 | 5, 10 | from $35 ↗ | $6.50/mg | 89score | Shop | |
| 20 | 10 | from $39.99 ↗ | $4.00/mg | 64score | Shop | |
| 21 | 5, 10 | from $69.99 ↗ | $7.00/mg | 75score | Shop | |
| 22 | 10 | from $83.70 ↗ | $8.37/mg | 84score | Shop | |
| 23 | 10 | — | — | 76score | Shop | |
| 24 | 2, 5, 10 | — | — | 79score | Shop | |
| 25 | 10 | from $34.99 ↗ | $5.50/mg | 77score | Shop | |
| 26 | 10 | from $59.99 ↗ | $6.00/mg | 64score | Shop | |
| 27 | 10 | from $65 ↗ | $6.50/mg | 72score | Shop | |
| 28 | 10 | — | — | 43score | Shop | |
| 29 | 5, 10 | from $32.79 ↗ | $6.48/mg | 33score | Shop | |
| 30 | — | — | — | 31score | Shop | |
| 31 | — | — | — | 31score | Shop | |
| 32 | 10 | — | — | 16score | Shop | |
| 33 | — | — | — | 21score | Shop | |
| 34 | 10 | from $89.99 ↗ | $9.00/mg | 15score | Shop | |
| 35 | 3 | from $44 ↗ | $14.67/mg | 68score | Shop | |
| 36 | 10 | from $65 ↗ | $6.50/mg | 92score | Shop | |
| 37 | 5, 10 | from $29.90 ↗ | $3.49/mg | 63score | Shop | |
| 38 | 5, 10 | from $92.99 ↗ | $12.30/mg | 59score | Shop | |
| 39 | 10 | from $38.35 ↗ | $3.84/mg | 92score | Shop |
Prices come from each vendor's own public store data and may exclude shipping, discounts or bulk pricing. Research-use products; not medical advice.
About Thymosin Alpha 1
What it is
The synthetic version is called thymalfasin.
How it works
- Effects are described as broad rather than aimed at one target
The compounds listed on this page are for research purposes only, not for human consumption. Not medical advice.
Thymosin Alpha-1: more questions people ask
Which Thymosin Alpha-1 vendors have lab reports confirmed by the testing lab?
19 as of November 12, 2026. Those whose confirmed reports cover both purity and toxicity: Lost Coast Aminos, Bench Grade Peptides, Pinnacle Peptide Labs, Ascension Peptides, NOVA Labs, Rebirth Labs, Disguised Alpha and Ps Peptides. PepAssess matches each report to the issuing lab's own public record, not the vendor's copy.
How can I tell if a Thymosin Alpha-1 certificate of analysis (COA) is real?
Look the report up in the testing lab's own records — most labs that test peptides publish a lookup by report ID, QR code or lot number. PepAssess does this for every Thymosin Alpha-1 report it finds: as of November 12, 2026, 19 of the 19 sellers publishing a Thymosin Alpha-1 report had one the lab confirmed.
How much does a vial of Thymosin Alpha-1 cost?
As of November 12, 2026, a 10 mg vial of Thymosin Alpha-1 costs a median $74.99 across the 196 sellers PepAssess found with one in stock (lowest $23); a 5 mg vial, a median $59.99 across 63 sellers (lowest $25.50). Each seller's lowest in-stock price for that size counts once; prices come from each seller's own store and exclude shipping and discounts.
Can you buy Thymosin Alpha-1 as a nasal spray, a pen or capsules?
Yes. As of November 12, 2026, 378 of the 39 Thymosin Alpha-1 sellers PepAssess lists sell a vial; 28 a nasal spray, 26 a pen or pre-filled form and 5 capsules or another oral form. Counts come from each store's own product names. A lab report covers the product and batch it names — check that it's for the form you're buying.
How do I know if a Thymosin Alpha-1 seller is legit?
Check what the seller can show. As of November 12, 2026, PepAssess checks every Thymosin Alpha-1 seller for three things: a Thymosin Alpha-1 lab report that the testing lab confirms on its own records (19 of 39), card payments, which let you dispute a charge (32 of 39), and a published street address — not a mailbox or registered agent (17 of 39). Each seller's PepAssess profile shows which of these it has.
Are there Thymosin Alpha-1 coupon codes?
Yes. PepAssess lists coupon codes for 39 vendors selling Thymosin Alpha-1: BioLongevity Labs: PEPASSESS (15% off), Hydro Research Peptides: PepAssess20 (20% off), Lost Coast Aminos: PEPASSESS (10% off), Myoasis Labs: pepassess (20% off), Bench Grade Peptides: PEPASSESS (10% off), Platinum Lion: pepassess (25% off) and 33 more.
CertaPeptides products are for research use only and not for human consumption.