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

Alpha Labs Peptides or Koi Peptides?

On our stars Koi Peptides comes out ahead, 3.6 to 3.4. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Only Alpha Labs Peptides lists the reference vial, so we cannot call the price question. Koi Peptides takes cards and Alpha Labs Peptides does not, which decides it for anyone who wants chargeback rights.

3.4 / 5
Editors’ rating, not reader reviews
Paperwork3.6
Company2.6
Price5.0
Shopping3.4
3.6 / 5
Editors’ rating, not reader reviews
Paperwork4.1
Company3.2
Price3.3
Shopping3.5

At a glance

Alpha Labs Peptides

  • StatusTrading
  • BasedSunrise, FL
  • Trading sinceNot published
  • Outside laboratoryYes
  • Laboratory namedFreedom Diagnostics
  • Certificates open to allYes
  • Certificates per lotNot verified
  • Reference vial$20.99
  • Free shipping from$150
  • Ways to payNot stated
  • Ships abroadNot verified
  • ShelfAbout 103; vials, capsules, nasal, blends
  • FDA letterNone on record

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

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

Reader questions

So, Alpha Labs Peptides or Koi Peptides?

On our stars Koi Peptides comes out ahead, 3.6 to 3.4. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Only Alpha Labs Peptides lists the reference vial, so we cannot call the price question. Koi Peptides takes cards and Alpha Labs Peptides does not, which decides it for anyone who wants chargeback rights. The widest gap between them is in price, where Alpha Labs Peptides leads.

Can I read a certificate from each before I order?

At Alpha Labs Peptides the certificates are open to anyone. At Koi 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.