Yes: three rated vendors that sell a standalone TB-500 vial accept a PeptideChecked code, and Ascension Peptides' AFFILIATE50OFF saves the most, at 50% off a first order. PSPeptides and Blank Peptides take 10% off with CHECKED. Licensed Peptides' Affiliate5 (5% off) only helps if you want its BPC-157/TB-500 blend, because it doesn't sell TB-500 alone. Codes are from our vendor records; we didn't re-test them at checkout for this page.
Facts checked October 16, 2026.
Notice: Research peptides are sold for in-vitro laboratory research only. They are not FDA-approved, not for human or animal consumption, and this page is not medical advice.
TB-500 prices and codes
Single-vial prices shown on each vendor's site on October 16, 2026, including any displayed sale price. "After code" is arithmetic, not a checkout quote. Vendors appear in our editors' order, which isn't sorted by score.
| Vendor | TB-500 vial | Price | Code | After code | $/mg after code | Score |
|---|
| NextGenPeps | 10 mg | $72.00 | No public code we verified | - | $7.20 | 8.8 |
| PSPeptides | 5 mg / 10 mg | $44.99 to $79.99 | CHECKED (10%) | $40.49 to $71.99 | $8.10 / $7.20 | 8.5 |
| Blank Peptides | 10 mg | Members only (not checked) | CHECKED (10% off order) | - | - | 7.8 |
| Ascension Peptides | 5 mg | $54.00 (was $60.00) | AFFILIATE50OFF (50%, first order) | $27.00 | $5.40 | 8.1 |
| Peptide Plugs | 10 mg | $50.00 | No public code we verified | - | $5.00 | 7.5 |
| Peptide Confidential | 10 mg | CA$60 (about US$42.27) | No code (multi-vial discount applies automatically) | - | $4.23 | 7.6 |
Sources: NextGenPeps, PSPeptides, Blank Peptides, Ascension, Peptide Plugs, Peptide Confidential.
PSPeptides showed only a price range for its two sizes on October 16, so the after-code figures are for the bottom and top of that range (the 5mg was $44.99 and the 10mg $79.99 when we last saw per-size prices on September 26, 2026). Peptide Confidential prices in Canadian dollars; the US figure is the site's own approximation.
Disclosure: PeptideChecked has affiliate relationships with PSPeptides, Blank Peptides, Ascension Peptides and Licensed Peptides. We may earn a commission if you buy through our links or use these codes. That doesn't change any rating, which comes only from our published method.
What each vendor offers on TB-500
- Ascension Peptides: AFFILIATE50OFF is for a first order. The TB-500 5mg page showed $54.00, down from $60.00, with volume pricing of $52.38 a vial at 3, $51.30 at 5 and $48.60 at 10. It lists two batches with named labs: Kovera Labs (batch 31-05260628, June 2, 2026) and MZ Biolabs (batch 31-01260229, February 25, 2026). Details: Ascension Peptides coupon code.
- PSPeptides: CHECKED takes 10% off. The page also lists bundle discounts (3% at 2 vials, 6% at 3, 9% at 4 or more), a 10% subscribe option and 40% off 10-vial kits, plus free shipping on any order. Current batches for both sizes link COA, heavy metals, endotoxin, sterility and fentanyl reports, though the page doesn't name the lab. Details: PSPeptides coupon code.
- Blank Peptides: CHECKED takes 10% off the entire order. Its homepage lists TB-500 at 10mg a vial, but prices show only after a free member sign-up, so we couldn't check the TB-500 price. New members were offered 25% off a first order on October 16. Details: Blank Peptides coupon code.
- Licensed Peptides: no standalone TB-500. Its shop lists a BPC-157/TB-500 "Wolverine" blend from $99.99, which would be $94.99 with Affiliate5. The site was also running a 2-for-1 sale on October 16, 2026; we couldn't confirm whether the code stacks with it. Details: Licensed Peptides coupon code.
- NextGenPeps: no code from us. TB-500 10mg showed $72.00, and its footer offers a 10% code for email sign-up.
- Peptide Plugs: no code. Volume pricing runs from 5% off at 2 vials to 40% off ($30 a vial) at 10 or more. Its current lot (101610L-DK, August 30, 2026) shows 99.35% purity and 12.65mg measured against a 10mg label, from Freedom Diagnostics.
- Peptide Confidential: no code; its multi-vial discount is applied at checkout, as low as CA$42 a vial at any 10 vials. It ships to the US from Calgary.
- American Peptides and Alpha Pro Peptides: no PeptideChecked code. On October 16, 2026, American Peptides' site advertised its own weekend code, MAD25 (25% off sitewide, time-limited), and Alpha Pro showed a "Buy 1 Get 1 Free Site Wide" banner. Check those offers on each vendor's site, since both can end without notice.
Cheapest TB-500 after codes
On a first order, Ascension's 5mg vial at $27.00 after AFFILIATE50OFF works out to $5.40 per mg. Without a first-order code, Peptide Confidential (about $4.23 per mg at the site's US conversion) and Peptide Plugs ($5.00 per mg) are lower on a single vial. Buying 10 vials changes the picture: Peptide Plugs drops to $30 a vial, or $3.00 per mg. All of these are list-price arithmetic from October 16, 2026, before shipping.
How to apply a code
- Go to the vendor through our link, or type its address.
- Add TB-500 to your cart.
- Enter the code in the coupon or discount-code field at checkout.
- Confirm the discount line appears before you pay.
If it doesn't apply, check for a typo, a sale item the vendor excludes, or (for Ascension) a previous order. Codes and terms are set by the vendor and can change at any time.
Terms we couldn't confirm
None of PSPeptides, Blank Peptides, Ascension or Licensed Peptides publishes stacking rules we could find. We couldn't confirm whether these codes apply on top of sale prices, bundle pricing or the 2-for-1 sale. Treat the checkout total as the answer.
Before you use a discount
A cheaper vial isn't a better-documented one. Our TB-500 vendor comparison found that none of these vendors had independent Finnrick results for TB-500, so every certificate was commissioned by the vendor. That makes lot matching the main check: compare the lot on the certificate with the label on your vial. Some vendors also sell a separate "TB-500 fragment" or full thymosin beta-4, so confirm the sequence. Our COA guide covers what to look for.
TB-500 is on WADA's 2026 Prohibited List under S2.3. For blends, see BPC-157 + TB-500 blend vendors, and for every vendor's current offer, our peptide coupon codes hub.
Try Ascension Peptides: 50% off first order with code AFFILIATE50OFFCode AFFILIATE50OFF · 8.1/10 overall
Visit Ascension Peptides
Try PSPeptides: 10% off with code CHECKEDCode CHECKED · 8.5/10 overall
Visit PSPeptides
