Rated Peptides
Compare · October 2026

Koi Peptides vs Pure Peptide Labs

Pure Peptide Labs scores higher, 7.2 to 7.1 out of 10. Both let you open a certificate before you spend anything, so certificates will not separate them. Both take cards.

Updated · Editorial scores, not user reviews

7.1
Editors' scoreGood · #6 of 49Editorial score, not user reviews.
Quality7.4
Trust6.3
Value6.5
Experience6.9
7.2
Editors' scoreGood · #5 of 49Editorial score, not user reviews.
Quality8.6
Trust5.3
Value5.0
Experience7.1

At a glance

The same facts for both, side by side.

Koi Peptides

  • StatusTrading
  • BasedSheridan, WY (registered address); warehouses Austin, TX and Long Beach, CA
  • Trading since2022
  • Outside laboratoryYes
  • Laboratory namedFreedom Diagnostics
  • Certificates open to allYes
  • Certificates per lotYes
  • Reference vialNot listed
  • Free shipping from$200
  • Ways to paycard, ach, wire
  • Ships abroadYes
  • CatalogNot counted; vials
  • FDA letterNone on record

Pure Peptide Labs

  • StatusTrading
  • BasedCedar Park, TX
  • Trading since2024
  • Outside laboratoryYes
  • Laboratory namedFreedom Diagnostics, Kovera Labs, MDx BioAnalytical Laboratory, Precision Mass Spec
  • Certificates open to allYes
  • Certificates per lotYes
  • Reference vialNot listed
  • Free shipping from$0
  • Ways to paycard, ach
  • Ships abroadNo
  • CatalogAbout 63; vials, blends
  • FDA letterNone on record

Both companies sell materials labeled for laboratory research use only. Full reviews: Koi Peptides review · Pure Peptide Labs review · all comparisons.

Keep comparing

The guide that explains the biggest gap here, the lists both are on, and nearby match-ups.

Questions

So, Koi Peptides or Pure Peptide Labs?

Pure Peptide Labs scores higher, 7.2 to 7.1 out of 10. Both let you open a certificate before you spend anything, so certificates will not separate them. Both take cards. The widest gap is in value, where Koi Peptides leads.

Can I read a certificate from each before I order?

Koi Peptides posts certificates anyone can open, each tied to a lot. Pure Peptide Labs posts certificates anyone can open, each tied to a lot.

Are these user reviews?

No. Both scores come from our published formula applied to facts on each supplier’s own pages and in public records. Nobody can submit a rating here.