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

Core Peptides or Peptide Warehouse?

On our stars Core Peptides comes out ahead, 3.8 to 3.1. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Core Peptides is the cheaper of the two on the reference vial, $52 against $52.99 at Peptide Warehouse. Both take cards.

3.8 / 5
Editors’ rating, not reader reviews
Paperwork4.2
Company3.6
Price3.2
Shopping3.8
3.1 / 5
Editors’ rating, not reader reviews
Paperwork4.1
Company1.3
Price3.5
Shopping3.8

At a glance

Core Peptides

  • StatusTrading
  • BasedOrlando, FL
  • Trading since2019
  • Outside laboratoryYes
  • Laboratory namedVanguard Laboratory
  • Certificates open to allYes
  • Certificates per lotYes
  • Reference vial$52
  • Free shipping from$200
  • Ways to paycard
  • Ships abroadNo
  • ShelfAbout 104; vials, blends, topical
  • FDA letterNone on record

Peptide Warehouse

  • StatusTrading
  • BasedUS
  • Trading sinceNot published
  • Outside laboratoryYes
  • Laboratory namedFreedom Diagnostics
  • Certificates open to allYes
  • Certificates per lotYes
  • Reference vial$52.99
  • Free shipping from$299
  • Ways to paycard, zelle, crypto
  • Ships abroadNo
  • ShelfAbout 55; vials, blends
  • FDA letterNone on record

Both companies sell materials labeled for laboratory research use only. Full reviews: Core Peptides · Peptide Warehouse.

Reader questions

So, Core Peptides or Peptide Warehouse?

On our stars Core Peptides comes out ahead, 3.8 to 3.1. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Core Peptides is the cheaper of the two on the reference vial, $52 against $52.99 at Peptide Warehouse. Both take cards. The widest gap between them is in company, where Core Peptides leads.

Can I read a certificate from each before I order?

At Core Peptides the certificates are open to anyone and each one is tied to a lot. At Peptide Warehouse 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.