October 2026 issue · Editors' star ratings, never reader reviews · How we rate
Rated.Peptides

A buyer's magazine for research peptide suppliers

Head to head · October 2026

Koi Peptides or Licensed Peptides?

On our stars Licensed Peptides comes out ahead, 4.0 to 3.6. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Both take cards.

3.6 / 5
Editors’ rating, not reader reviews
Paperwork4.1
Company3.2
Price3.3
Shopping3.5
4.0 / 5
Editors’ rating, not reader reviews
Paperwork5.0
Company3.1
Price3.3
Shopping4.2

At a glance

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
  • ShelfNot counted; vials
  • FDA letterNone on record

Licensed Peptides

  • StatusTrading
  • BasedBoca Raton, FL
  • Trading sinceNot published
  • Outside laboratoryYes
  • Laboratory namedVanguard Laboratory, Ethos Analytics
  • Certificates open to allYes
  • Certificates per lotYes
  • Reference vialNot listed
  • Free shipping from$200
  • Ways to paycard, apple_pay, google_pay
  • Ships abroadNo
  • ShelfAbout 58; vials, nasal, capsules, blends
  • FDA letterNone on record

Both companies sell materials labeled for laboratory research use only. Full reviews: Koi Peptides · Licensed Peptides.

Reader questions

So, Koi Peptides or Licensed Peptides?

On our stars Licensed Peptides comes out ahead, 4.0 to 3.6. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Both take cards. The widest gap between them is in paperwork, where Licensed Peptides leads.

Can I read a certificate from each before I order?

At Koi Peptides the certificates are open to anyone and each one is tied to a lot. At Licensed Peptides the certificates are open to anyone and each one is tied to a lot.

Are these reader reviews?

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