Best Tesamorelin Vendors
87 vendors we track carry Tesamorelin. The 59 that pass our testing gate are ranked below by PSR score, with the certificate each one posts for Tesamorelin, a price matched at 10mg and any reader code. For laboratory research use only.
- Carry it
- 87
Carry it
- Pass testing gate
- 59
Pass testing gate
- Lab-confirmed COAs
- 62
Lab-confirmed COAs
Want every carrier ordered by its Tesamorelin certificate instead, with sizes and stock? See the full Tesamorelin comparison. How a score is built: How we rate. How to check a certificate yourself: how to read a peptide COA.
Top 3 Tesamorelin vendors by PSR score
The highest PSR scores among open stores that carry Tesamorelin 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
Zeptix Labs8.17Strong- Certificate
- Verified (opens in new tab)
- Lab
- Freedom Diagnostics TestingTier A
- Purity
- 99.22%
- Tested
- Price
- $5.00/mg ($99.99 for 10mg)
#2 by PSR score
Peptix USA8.15Strong- Certificate
- Verified (opens in new tab)
- Lab
- ILS LaboratoriesTier B+
- Purity
- 99.8%
- Tested
- (first seen)
- Price
- $6.20/mg ($62.00 for 10mg)
#3 by PSR score
Southern Aminos8.09Strong- Certificate
- Verified (opens in new tab)
- Lab
- ILS LaboratoriesTier B+
- Purity
- 99.71%
- Tested
- Price
- $6.32/mg ($63.20 for 10mg)
Best Tesamorelin vendors with a reader discount
Affiliate partners that pass the testing gate and give readers a code that applies to Tesamorelin, 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.
- Zeptix Labs8.17Strong
- DAAVY Research8.01Strong
- Luv Aminos7.90Strong
- Ameano Peptides7.80Strong
- LabFirst Peptides7.73Strong
- Ascension Peptides7.55Strong
- Honest Peptide7.42Strong
- BioLongevity Labs7.24Strong
- Arctic Lab Supply6.98Fair
- NovaForge Labs6.89Fair
- Pinnacle Peptide Labs6.44Fair
- JD BioWorks6.34Fair
- Hello Stacks6.14Fair
- NextGen Peps5.95Fair
- AminoVault5.78Fair
Every Tesamorelin vendor that passes the gate, by PSR score
59 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 Tesamorelin 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.
Listed separately: 28 vendors outside the ranking
These carry Tesamorelin 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 28 vendors that fail the testing gate
Best Tesamorelin vendors: frequently asked questions
Who is the best Tesamorelin vendor?
By PSR score, Zeptix Labs is the highest-rated open store carrying Tesamorelin that passes our testing gate (8.17/10, Strong). Peptix USA (8.15) and Southern Aminos (8.09) follow. The certificate each of them posts for Tesamorelin is shown beside the score, so a reader can check it before buying.
Where can I buy Tesamorelin with a discount code?
15 affiliate partners carrying Tesamorelin 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 Tesamorelin 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 Tesamorelin are shown but do not change the order, and affiliate status never does.
Why are some Tesamorelin vendors listed separately?
28 vendors carrying Tesamorelin 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 Tesamorelin certificate of analysis?
Open the certificate from the vendor's row, confirm it names Tesamorelin and a batch, then look up the verification key on the testing laboratory's own site. 62 of the 87 Tesamorelin 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.