Immune Support & LongevityIndependent · No affiliate links · No paid placement
Thymosin-Alpha 1 (A1) price comparison
Thymosin-Alpha 1 (A1) is in stock at 58 shops, all with third-party lab tests on file. Per-milligram prices run from $2.50 to $13.90 across 62 comparable offers (median $6.80/mg), in vials from 2mg to 20mg. Last read 24 Sep 2026.
Shops in stock
58
of 145 known to sell Thymosin-Alpha 1 (A1)
Comparable offers
62
of 72 listings identified
Lowest $/mg
$2.50
on a 10mg vial
Median $/mg
$6.80
all sizes, per shop
145 shops are known to sell Thymosin-Alpha 1 (A1) — 65 with a live listing, 80 evidenced by a lab test in the last year. 72 listings are identified, of which 62 can be compared per milligram.
- 7 sold only as a multi-vial kit
- 3 out of stock
- 80 known from a lab test, no live listing
Price by vial size
Bigger vials cost less per milligram. The vial, freeze-drying, labelling, lab test and shipping cost roughly the same whether it holds 5mg or 100mg, so per-milligram price falls as fill size rises. Compare within your size band rather than across the whole list.
Smaller vials
2–5mg
$7.00/mg lowest · 5mg vial
11 offersmedian $8.60/mg
Larger vials
10–20mg
$2.50/mg lowest · 10mg vial
51 offersmedian $6.50/mg
What would Thymosin-Alpha 1 (A1) cost you?
Open in the cost calculator →mcg
weeks
Uses labelled mg. Excludes shipping, taxes and customs. Vials are rounded up — you can't buy 0.7 of a vial.
Enter a dose and a duration to see the cost.
All offers
Compare within your size band — per-mg cost falls as fill size rises.
| Shop | Size | Price | $/mg | Checked |
|---|---|---|---|---|
| Smaller vials2–5mg11 offers · from $7.00/mg | ||||
| Peptuvia Lab testsRegion not statedCrypto, PayPal, Zelle, Cash App, card, Venmo, Wise, otherClaimedShop-stated · not counted | 5mg | $12.40 | $2.48 | 2h ago |
| Peptuvia Lab testsRegion not statedCrypto, PayPal, Zelle, Cash App, card, Venmo, Wise, otherClaimedShop-stated · not counted | 2mg | $6.90 | $3.45 | 2h ago |
| ameano peptides Lab testsRegion not stated listed as Thymosin Alpha 1 5mg | 5mg | $35.00 | $7.00 | 3h ago |
| OROS Researchlisted as Thymosin Alpha-1 5mg | 5mg | $39.99 | $8.00 | 5h ago |
| goalphalabs.com Lab testsRegion not stated listed as Thymosin Alpha-1 (5mg) | 5mg | $41.99 | $8.40 | 5h ago |
| ruo.bio Lab testsRegion not stated listed as Thymosin Alpha-1 5mg | 5mg | $42.00 | $8.40 | 4h ago |
| cosmicpeptides.com Lab testsRegion not stated listed as Thymosin Alpha-1 | 5mg | $42.99 | $8.60 | 3h ago |
| aiopeptides.com Lab testsRegion not stated listed as Thymosin Alpha-1 5mg | 5mg | $44.00 | $8.80 | 5h ago |
| hyteresearchdivision peptides Lab testsRegion not stated listed as Thymosin Alpha-1 – 5mg | 5mg | $49.99 | $10.00 | 2h ago |
| biopeptitech.com Lab testsRegion not stated listed as Thymosin Alpha-1 (5mg) | 5mg | $51.00 | $10.20 | 3h ago |
| aminousa.com Lab testsRegion not stated listed as Thymosin Alpha-1 5mg | 5mg | $60.00 | $12.00 | 5h ago |
| Larger vials10–20mg51 offers · from $2.50/mg | ||||
| Peptuvia Lab testsRegion not statedCrypto, PayPal, Zelle, Cash App, card, Venmo, Wise, otherClaimedShop-stated · not counted | 10mg | $20.30 | $2.03 | 2h ago |
| bulkpeptidesupply Lab testsRegion not stated listed as Thymosin Alpha-1 10 mg | 10mg | $25.00 | $2.50 | 5h ago |
| Zen Aminoslisted as THYMOSIN ALPHA-1 10mg | 10mg | $28.95 | $2.90 | 1 day ago |
| s1research.netlisted as Thymosin Alpha 1 – 10mg | 10mg | $38.50 | $3.85 | 3h ago |
| researchchemhq.co Lab testsRegion not stated listed as Thymosin Alpha-1 | 10mg | 10mg | $44.99 | $4.50 | 3h ago |
| plumlabsresearch peptides Lab testsRegion not stated listed as Thymosin Alpha-1 10mg | 10mg | $45.00 | $4.50 | 3h ago |
| peptideruo.com Lab testsRegion not stated listed as Thymosin Alpha-1 10mg | 10mg | $49.00 | $4.90 | 3h ago |
| rhomeresearchlisted as Thymosin Alpha‑1 – (10mg) | 10mg | $49.99 | $5.00 | 4h ago |
| genpeptide.com Lab testsRegion not stated listed as Thymosin-Alpha 1 10mg | 10mg | $50.00 | $5.00 | 3h ago |
| pureuspeptide.com Lab testsRegion not stated listed as Thy Alpha 1 10mg | 10mg | $53.55 | $5.36 | 3h ago |
| pura peptides Lab testsRegion not stated listed as Thymosin Alpha-1 | 10mg | $55.00 | $5.50 | 5h ago |
| ezpeptides.com Lab testsRegion not stated listed as Thymosin Alpha 1 10mg | 10mg | $58.00 | $5.80 | 3h ago |
| nurevpeptides.com Lab testsRegion not stated listed as Thymosin Alpha 1 10mg | 10mg | $59.00 | $5.90 | 5h ago |
| nela peptideslisted as Thymosin Alpha-1 10mg | 10mg | $59.00 | $5.90 | 5h ago |
| nuscience peptides Lab testsRegion not stated listed as Thymosin Alpha 1 – 10mg | 10mg | $59.99 | $6.00 | 5h ago |
| volterasciences.com Lab testsRegion not stated listed as Thymosin Alpha-1 10MG | 10mg | $59.99 | $6.00 | 3h ago |
| Peptide Plugs Lab testsRegion not stated listed as Thymosin Alpha-1 10mg | 10mg | $60.00 | $6.00 | 4h ago |
| nulifepeptides.com Lab testsRegion not stated listed as Thymosin Alpha-1 (10mg) | 10mg | $60.00 | $6.00 | 3h ago |
| ameano peptides Lab testsRegion not stated listed as Thymosin Alpha 1 10mg | 10mg | $62.00 | $6.20 | 3h ago |
| glacieraminos Lab testsRegion not stated listed as THYMOSIN ALPHA 1 10MG | 10mg | $63.99 | $6.40 | 5h ago |
| felixchem.is Lab testsRegion not stated listed as Thymosin-α1 10mg | 10mg | $64.99 | $6.50 | 5h ago |
| onedaycompounds.com Lab testsRegion not stated listed as THYMOSIN ALPHA 1 10MG | 10mg | $64.99 | $6.50 | 3h ago |
| polarispeptides.com Lab testsRegion not stated listed as Thymosin Alpha-1 10mg | 10mg | $65.00 | $6.50 | 5h ago |
| myoasislabs peptides Lab testsRegion not stated listed as Thymosin Alpha-1 10mg | 10mg | $65.00 | $6.50 | 3h ago |
| riptidewellness.com Lab testsRegion not stated listed as Thymosin Alpha-1 (10mg) | 10mg | $65.00 | $6.50 | 3h ago |
| peptide crafters Lab testsRegion not stated listed as Thymosin alpha 1 (10mg) | 10mg | $65.00 | $6.50 | 5h ago |
| hydroresearch peptideslisted as Thymosin Alpha-1 10mg | 10mg | $65.00 | $6.50 | 5h ago |
| mspeptides.com Lab testsRegion not stated listed as Thymosin Alpha-1 (10mg) | 10mg | $65.99 | $6.60 | 3h ago |
| purepeptides.bio Lab testsRegion not stated listed as Thymosin Alpha 1 20MG | 20mg | $135.00 | $6.75 | 4h ago |
| libertypeptides.com Lab testsRegion not stated listed as Thymosin Alpha-1 (10mg) | 10mg | $68.00 | $6.80 | 5h ago |
| uspurepeptides.com Lab testsRegion not stated listed as Thy Alpha 1 | 10mg | $68.00 | $6.80 | 3h ago |
| trulabpeptides.com Lab testsRegion not stated listed as Thymosin Alpha 1 – 10mg | 10mg | $69.00 | $6.90 | 4h ago |
| orbitrexpeptide.is Lab testsRegion not stated listed as Thymosin Alpha-1 10mg | 10mg | $69.99 | $7.00 | 4h ago |
| ascensionpeptides.com Lab testsRegion not stated listed as Thymosin Alpha 1 (10MG) | 10mg | $71.00 | $7.10 | 3h ago |
| tydes.is Lab testsRegion not stated listed as Thymosin Alpha-1 10 mg | 10mg | $74.99 | $7.50 | 5h ago |
| happypeptides.comlisted as Thymosin Alpha-1 | 10mg | $76.00 | $7.60 | 5h ago |
| nupeps.com Lab testsRegion not statedLast read 6 days ago listed as Thymosin Alpha-1 10MG | 10mg | $78.00 | $7.80 | 6 days ago |
| certified peptides Lab testsRegion not stated listed as THYMOSIN ALPHA-1 10MG | 10mg | $78.00 | $7.80 | 5h ago |
| trustedpeptides.store Lab testsRegion not stated listed as Thymosin Alpha-1 (10 MG) | 10mg | $80.00 | $8.00 | 5h ago |
| purepeptides.bio Lab testsRegion not stated listed as Thymosin Alpha 1 10MG | 10mg | $80.00 | $8.00 | 4h ago |
| aminoquestlabs.com Lab testsRegion not stated listed as Thymasin alpha-1 10mg | 10mg | $85.00 | $8.50 | 3h ago |
| nurapeptide.com Lab testsRegion not stated listed as TA1 (10mg) – Analytical Research Standard | 10mg | $85.00 | $8.50 | 3h ago |
| Peptira peptides Lab testsRegion not stated listed as THYMOSIN ALPHA-1 | 10MG | 10mg | $89.00 | $8.90 | 2 days ago |
| aminovault.com Lab testsRegion not stated listed as Thymosin Alpha-1 10 mg | 10mg | $89.25 | $8.93 | 5h ago |
| elitebiogenix.com Lab testsRegion not stated listed as Thymosin Alpha-1 10mg | 10mg | $99.99 | $10.00 | 3h ago |
| protidehealth.com Lab testsRegion not stated listed as Thymosin Alpha-1 10mg | 10mg | $105.00 | $10.50 | 4h ago |
| buyironpeptides.com Lab testsRegion not stated listed as Thymosin Alpha 1 Peptide | 10mg | $109.00 | $10.90 | 4h ago |
| americanpeptides.us Lab testsRegion not stated listed as THYMOSIN ALPHA-1 | 10mg | $125.00 | $12.50 | 3h ago |
| biolongevitylabs.com Lab testsRegion not stated listed as Thymosin Alpha 1 (10mg) | 10mg | $129.97 | $13.00 | 5h ago |
| limitlesspeptides.com Lab testsRegion not stated listed as Thymosin Alpha-1 | 10mg | $130.00 | $13.00 | 2 days ago |
| warrior-makers.com Lab testsRegion not stated listed as Thymosin Alpha-1 10mg | 10mg | $139.00 | $13.90 | 3h ago |
| Out of stock3 offers · kept for price history, excluded from the figures above | ||||
| mypurepeptide.com Lab testsRegion not statedOut of stock listed as Thymosin Alpha-1 5mg | 5mg | $25.00 | $5.00 | 5h ago |
| cosmicpeptides.com Lab testsRegion not statedOut of stock listed as Thymosin Alpha-1 | 10mg | $69.99 | $7.00 | 3h ago |
| verified peptides Lab testsRegion not statedOut of stock listed as Thymosin Alpha-1 Peptide (10MG) | 10mg | $80.00 | $8.00 | 5h ago |
Out-of-stock rows are excluded from the lowest, the median and the shop count. Prices exclude shipping, taxes and customs. Ships-from and payment methods are stated by the shop, not verified. A row not read for 3+ days is marked. Outbound links carry no affiliate or tracking parameters.
Price moves
- up 33%
$4.87→ $6.50/mg23 Sep - down 30%
$12.00→ $8.40/mg23 Sep - 10mgup 25%
$5.12→ $6.40/mg22 Sep - up 30%
$4.60→ $6.00/mg19 Sep - down 11%
$9.00→ $8.00/mg16 Sep - 5mg · went out of stock—
$5.00/mg13 Sep - down 11%
$9.90→ $8.80/mg12 Sep - down 11%
$11.25→ $10.00/mg11 Sep
Price history
Lowest $/mg
$2.50
Median
$6.75
24 Sep 2026 · 71 in stock
Method notes
What’s not included
- Shipping, taxes and customs charges
- Coupon codes and bulk discount tiers
- Multi-vial kits and email-only pricing
- Any vendor that requires an account to show a price
How we stay neutral
- No shop pays for placement or position
- Claimed status and promotions never affect sort order or the lowest $/mg
- Outbound links carry no affiliate tracking
- Prices are read from public storefronts by the same script for every shop
- Listing is not endorsement