Best Thymagen Vendors
5 vendors we track carry Thymagen. The 4 that pass our testing gate are ranked below by PSR score, with the certificate each one posts for Thymagen, a price matched at 20mg and any reader code. For laboratory research use only.
- Carry it
- 5
Carry it
- Pass testing gate
- 4
Pass testing gate
- Lab-confirmed COAs
- 3
Lab-confirmed COAs
Want every carrier ordered by its Thymagen certificate instead, with sizes and stock? See the full Thymagen comparison. How a score is built: How we rate. How to check a certificate yourself: how to read a peptide COA.
Top 3 Thymagen vendors by PSR score
The highest PSR scores among open stores that carry Thymagen 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 by PSR score
Modern Aminos7.88Strong- Certificate
- Verified (opens in new tab)
- Lab
- Freedom Diagnostics TestingTier A
- Purity
- 99.09%
- Tested
- Price
- $3.45/mg ($69.00 for 20mg)
#2 by PSR score
BioLongevity Labs7.24Strong- Certificate
- Verified (opens in new tab)
- Lab
- MDx BioAnalytical LaboratoryTier A+
- Purity
- 99.76%
- Tested
- (first seen)
- Price
- $4.00/mg ($79.97 for 20mg)
#3 by PSR score
Paramount Peptides7.12Strong- Certificate
- Verified (opens in new tab)
- Lab
- Janoshik AnalyticalTier B+
- Purity
- 99.6%
- Tested
- Price
- $5.95/mg ($119.00 for 20mg)
Best Thymagen vendors with a reader discount
Affiliate partners that pass the testing gate and give readers a code that applies to Thymagen, 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.
- BioLongevity Labs7.24Strong
- NextGen Peps5.95FairNoneNo third-party COA was publicly available at audit time
Every Thymagen vendor that passes the gate, by PSR score
4 vendors, highest PSR score first; equal scores are listed alphabetically. Price per mg is matched at 20mg, the size most carriers sell, so vials compare like for like. The certificate column is the vendor’s certificate for Thymagen 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.
| # | Vendor | PSR score | Thymagen certificate | $/mg at 20mg | Reader code | Links |
|---|---|---|---|---|---|---|
| 1 | Modern Aminos | 7.88Strong | Verified (opens in new tab) | $3.45/mg | Shop → | |
| 2 | BioLongevity Labs | 7.24Strong | Verified (opens in new tab) | $4.00/mg | Shop → | |
| 3 | Paramount Peptides | 7.12Strong | Verified (opens in new tab) | $5.95/mg | Shop → | |
| 4 | NextGen Peps | 5.95Fair | NoneNo third-party COA was publicly available at audit time | $2.70/mg | Shop → |
Listed separately: 1 vendor outside the ranking
These carry Thymagen 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 1 vendor that fail the testing gate
| # | Vendor | PSR score | Thymagen certificate |
|---|---|---|---|
| 1 | Swiss Chems | 5.39Weak | NoneNo third-party COA was publicly available at audit time |
Best Thymagen vendors: frequently asked questions
Who is the best Thymagen vendor?
By PSR score, Modern Aminos is the highest-rated open store carrying Thymagen that passes our testing gate (7.88/10, Strong). BioLongevity Labs (7.24) and Paramount Peptides (7.12) follow. The certificate each of them posts for Thymagen is shown beside the score, so a reader can check it before buying.
Where can I buy Thymagen with a discount code?
2 affiliate partners carrying Thymagen pass our testing gate and give readers a code that applies to it. The highest rated is BioLongevity Labs (code PSR, 15% off). We may earn a commission on those links; it never changes a score or a rank.
How are these Thymagen 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 Thymagen are shown but do not change the order, and affiliate status never does.
Why are some Thymagen vendors listed separately?
1 vendor carrying Thymagen does 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 Thymagen certificate of analysis?
Open the certificate from the vendor's row, confirm it names Thymagen and a batch, then look up the verification key on the testing laboratory's own site. 3 of the 5 Thymagen 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.