Ranked by PSR score · Nov 2026

Best Epitalon Vendors

39 vendors we track carry Epitalon. The 24 that pass our testing gate are ranked below by PSR score, with the certificate each one posts for Epitalon, a price matched at 10mg and any reader code. For laboratory research use only.

Carry it
39

Carry it

Pass testing gate
24

Pass testing gate

Lab-confirmed COAs
22

Lab-confirmed COAs

Want every carrier ordered by its Epitalon certificate instead, with sizes and stock? See the full Epitalon comparison. How a score is built: How we rate. How to check a certificate yourself: how to read a peptide COA.

Top 3 Epitalon vendors by PSR score

The highest PSR scores among open stores that carry Epitalon and pass our testing gate. Affiliate status plays no part in this list.

Affiliate links: we may earn a commission if you buy. It never changes a score or rank.

  1. #1 by PSR score

    Zeptix Labs
    8.17Strong
    Certificate
    Verified (opens in new tab)
    Lab
    Accumark LabsTier B+
    Purity
    99.44%
    Tested
    Price
    $3.00/mg ($29.99 for 10mg)
    Shop Zeptix Labs (opens in new tab) →Zeptix Labs code details
  2. #2 by PSR score

    Southern Aminos
    8.09Strong
    Certificate
    Verified (opens in new tab)
    Lab
    Freedom Diagnostics TestingTier A
    Purity
    99.798%
    Tested
    Price
    $3.60/mg ($36.00 for 10mg)
  3. #3 by PSR score

    Amino Club
    8.08Strong
    Certificate
    Verified (opens in new tab)
    Lab
    ILS LaboratoriesTier B+
    Purity
    99.26%
    Tested
    Price
    $3.00/mg ($29.99 for 10mg)

Best Epitalon vendors with a reader discount

Affiliate partners that pass the testing gate and give readers a code that applies to Epitalon, in PSR score order. This block is a convenience only: the ranking below is the same with or without it.

Affiliate links: we may earn a commission if you buy. It never changes a score or rank.

Every Epitalon vendor that passes the gate, by PSR score

24 vendors, highest PSR score first; equal scores are listed alphabetically. Price per mg is matched at 10mg, the size most carriers sell, so vials compare like for like. The certificate column is the vendor’s certificate for Epitalon only. Affiliate status never affects the order (how we keep it separate).

Affiliate links: we may earn a commission if you buy. It never changes a score or rank.

Epitalon vendors that pass the testing gate, by PSR score
#VendorPSR scoreEpitalon certificate$/mg at 10mgReader codeLinks
1Zeptix Labs8.17StrongVerified (opens in new tab)$3.00/mgShop →
2Southern Aminos8.09StrongVerified (opens in new tab)$3.60/mgShop →
3Amino Club8.08StrongVerified (opens in new tab)$3.00/mgShop →
4DAAVY Research8.01StrongVerified (opens in new tab)$4.50/mgShop →
5LabFirst Peptides7.73StrongVerified (opens in new tab)$4.00/mgShop →
6S1Research7.70StrongVerified (opens in new tab)$2.50/mgShop →
7Bluum Peptides7.48StrongVerified (opens in new tab)$3.80/mgShop →
8Peptides Source7.33StrongVerified (opens in new tab)$3.00/mgShop →
9BioLongevity Labs7.24StrongView (key not found) (opens in new tab)No 10mgShop →
10Pacific Edge Labs7.15StrongView (opens in new tab)No 10mgShop →
11Prime Peptide Solutions7.14StrongView (opens in new tab)$6.00/mgShop →
12StudzPeptides7.10StrongVerified (opens in new tab)$2.50/mgShop →
13NuuVive Peptides6.93FairVerified (opens in new tab)$5.10/mgShop →
14VoriLabs6.87FairVerified (opens in new tab)$4.50/mgShop →
15Rogue Compounds6.86FairVerified (opens in new tab)$4.90/mgShop →
16FRO Peptides6.67FairVerified (opens in new tab)$4.00/mgShop →
17NuScience Peptides6.43FairVerified (opens in new tab)$4.50/mgShop →
18JD BioWorks6.34FairVerified (opens in new tab)No 10mgShop →
19NextSelf Labs6.26FairVerified (opens in new tab)$4.00/mgShop →
20Hello Stacks6.08FairNoneNo third-party COA was publicly available at audit time$3.90/mgShop →
21NextGen Peps5.95FairVerified (opens in new tab)$3.40/mgShop →
22AminoWave Labs5.85FairVerified (opens in new tab)$2.50/mgShop →
23Peptide Pro5.62FairVerified (opens in new tab)$7.57/mgShop →
24Azyrion Labs5.40WeakVerified (opens in new tab)No 10mgShop →

Listed separately: 15 vendors outside the ranking

These carry Epitalon but do not meet our testing gate, so they are never placed in the ranking above, whatever their score. The gate records what we could verify; it is not a finding of a quality or safety problem.

Show 15 vendors that fail the testing gate
Epitalon vendors that fail the testing gate, by PSR score
#VendorPSR scoreEpitalon certificate
1Modified Aminos6.75FairVerified (opens in new tab)
2Curo6.27FairView (opens in new tab)
3Swiss Chems5.39WeakVerified (opens in new tab)
4Redline Bio Labs4.80WeakVendor report (lab not established) (opens in new tab)
5Based Research4.54WeakView (opens in new tab)
6Prism Labs3.92PoorVendor report (lab not established) (opens in new tab)
7Peptide.Express3.90PoorVendor report (lab not established) (opens in new tab)
8Spartan Peptides3.32PoorNoneNo third-party COA was publicly available at audit time
9Drexa Labs3.28PoorNoneNo third-party COA was publicly available at audit time
10RapidCore Bio3.26PoorNoneNo third-party COA was publicly available at audit time
11YourFitnessPeptides2.75PoorNoneNo third-party COA was publicly available at audit time
12Stack Research2.49PoorView COA (differs from lab copy) (opens in new tab)
13Peptara Labs2.38PoorVendor report (lab not established) (opens in new tab)
14Welon Peptide Solutions2.13PoorNoneNo third-party COA was publicly available at audit time
15Medura Peptides1.63PoorNoneNo third-party COA was publicly available at audit time

Best Epitalon vendors: frequently asked questions

Who is the best Epitalon vendor?

By PSR score, Zeptix Labs is the highest-rated open store carrying Epitalon that passes our testing gate (8.17/10, Strong). Southern Aminos (8.09) and Amino Club (8.08) follow. The certificate each of them posts for Epitalon is shown beside the score, so a reader can check it before buying.

Where can I buy Epitalon with a discount code?

7 affiliate partners carrying Epitalon pass our testing gate and give readers a code that applies to it. The highest rated is Zeptix Labs (code PSR20, 20% off). We may earn a commission on those links; it never changes a score or a rank.

How are these Epitalon vendors ranked?

By PSR score, the published vendor score out of 10, built from lab testing, certificate verification, pricing, shipping, operating history and reviews under the rules on How We Rate. Equal scores are listed alphabetically. Price per mg and the certificate for Epitalon are shown but do not change the order, and affiliate status never does.

Why are some Epitalon vendors listed separately?

15 vendors carrying Epitalon do not meet our testing gate: third-party testing could not be established or independently verified. They are listed below the ranking rather than in it. The gate records what we could verify; it is not a finding of a quality or safety problem.

How do I check a Epitalon certificate of analysis?

Open the certificate from the vendor's row, confirm it names Epitalon and a batch, then look up the verification key on the testing laboratory's own site. 22 of the 39 Epitalon certificates we track were confirmed at the lab. Our guide on how to read a peptide COA walks through each field. For laboratory research use only.

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