Best MOTS-c Vendors
67 vendors we track carry MOTS-c. The 43 that pass our testing gate are ranked below by PSR score, with the certificate each one posts for MOTS-c, a price matched at 10mg and any reader code. For laboratory research use only.
- Carry it
- 67
Carry it
- Pass testing gate
- 43
Pass testing gate
- Lab-confirmed COAs
- 47
Lab-confirmed COAs
Want every carrier ordered by its MOTS-c certificate instead, with sizes and stock? See the full MOTS-c comparison. How a score is built: How we rate. How to check a certificate yourself: how to read a peptide COA.
Top 3 MOTS-c vendors by PSR score
The highest PSR scores among open stores that carry MOTS-c 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
- 99.32%
- Tested
- Price
- $3.00/mg ($59.99 for 10mg)
#2 by PSR score
Southern Aminos8.09Strong- Certificate
- Verified (opens in new tab)
- Lab
- Freedom Diagnostics TestingTier A
- Purity
- 99.731%
- Tested
- Price
- $4.80/mg ($48.00 for 10mg)
#3 by PSR score
Amino Club8.02Strong- Certificate
- Verified (opens in new tab)
- Lab
- ILS LaboratoriesTier B+
- Purity
- 99.81%
- Tested
- Price
- $4.00/mg ($39.99 for 10mg)
Best MOTS-c vendors with a reader discount
Affiliate partners that pass the testing gate and give readers a code that applies to MOTS-c, 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
- LabFirst Peptides7.73Strong
- Ascension Peptides7.55Strong
- Honest Peptide7.42Strong
- BioLongevity Labs7.24Strong
- Arctic Lab Supply6.98Fair
- Limitless Biotech6.97Fair
- NovaForge Labs6.89Fair
- JD BioWorks6.34Fair
- Hello Stacks6.14Fair
- NextGen Peps5.95Fair
- AminoVault5.78Fair
Every MOTS-c vendor that passes the gate, by PSR score
43 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 MOTS-c 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: 24 vendors outside the ranking
These carry MOTS-c 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 24 vendors that fail the testing gate
| # | Vendor | PSR score | MOTS-c certificate |
|---|---|---|---|
| 1 | Modified Aminos | 6.75Fair | Verified (opens in new tab) |
| 2 | Swiss Chems | 5.39Weak | No lab named (opens in new tab) |
| 3 | Redline Bio Labs | 4.80Weak | Verified (opens in new tab) |
| 4 | Vyal Labs | 4.70Weak | View (opens in new tab) |
| 5 | Based Research | 4.54Weak | View (opens in new tab) |
| 6 | GenX Bio | 4.45Weak | Login-gatedCOAs are provided but sit behind the vendor's login wall |
| 7 | Ageless Peptides | 4.30Weak | NoneNo third-party COA was publicly available at audit time |
| 8 | Prism Labs | 3.92Poor | Vendor report (lab not established) (opens in new tab) |
| 9 | Peptide.Express | 3.76Poor | Vendor report (lab not established) (opens in new tab) |
| 10 | Lotus Peptide | 3.68Poor | Vendor report (lab not established) (opens in new tab) |
| 11 | Pexo Labs | 3.63Poor | Vendor report (lab not established) (opens in new tab) |
| 12 | Spartan Peptides | 3.38Poor | Verified (opens in new tab) |
| 13 | Nextday Peptides | 3.27Poor | Verified (opens in new tab) |
| 14 | RapidCore Bio | 3.25Poor | Vendor-issued (opens in new tab) |
| 15 | Drexa Labs | 3.23Poor | NoneNo third-party COA was publicly available at audit time |
| 16 | Snowman Research | 3.06Poor | NoneNo third-party COA was publicly available at audit time |
| 17 | YourFitnessPeptides | 2.75Poor | NoneNo third-party COA was publicly available at audit time |
| 18 | Anhydrolabs | 2.67Poor | NoneNo third-party COA was publicly available at audit time |
| 19 | Stack Research | 2.51Poor | View COA (differs from lab copy) (opens in new tab) |
| 20 | Peptide Warehouse US | 2.46Poor | NoneNo third-party COA was publicly available at audit time |
| 21 | Peptara Labs | 2.38Poor | Vendor report (lab not established) (opens in new tab) |
| 22 | PepBiotics | 2.23Poor | NoneNo third-party COA was publicly available at audit time |
| 23 | Welon Peptide Solutions | 2.13Poor | NoneNo third-party COA was publicly available at audit time |
| 24 | Medura Peptides | 1.63Poor | NoneNo third-party COA was publicly available at audit time |
Best MOTS-c vendors: frequently asked questions
Who is the best MOTS-c vendor?
By PSR score, Zeptix Labs is the highest-rated open store carrying MOTS-c that passes our testing gate (8.17/10, Strong). Southern Aminos (8.09) and Amino Club (8.02) follow. The certificate each of them posts for MOTS-c is shown beside the score, so a reader can check it before buying.
Where can I buy MOTS-c with a discount code?
14 affiliate partners carrying MOTS-c 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 MOTS-c 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 MOTS-c are shown but do not change the order, and affiliate status never does.
Why are some MOTS-c vendors listed separately?
24 vendors carrying MOTS-c 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 MOTS-c certificate of analysis?
Open the certificate from the vendor's row, confirm it names MOTS-c and a batch, then look up the verification key on the testing laboratory's own site. 47 of the 67 MOTS-c 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.