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 Geo Peptides?

On our stars Core Peptides comes out ahead, 3.8 to 2.9. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Geo Peptides is the cheaper of the two on the reference vial, $33.99 against $52 at Core Peptides. Both take cards.

3.8 / 5
Editors’ rating, not reader reviews
Paperwork4.2
Company3.6
Price3.2
Shopping3.8
2.9 / 5
Editors’ rating, not reader reviews
Paperwork1.7
Company2.8
Price5.0
Shopping3.4

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

Geo Peptides

  • StatusTrading
  • BasedFlorida (city not stated)
  • Trading since2013
  • Outside laboratoryLimited
  • Laboratory namedNone
  • Certificates open to allYes
  • Certificates per lotNot verified
  • Reference vial$33.99
  • Free shipping from$150
  • Ways to paycard
  • Ships abroadNot verified
  • ShelfNot counted; vials, bulk, blends
  • FDA letterNone on record

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

Reader questions

So, Core Peptides or Geo Peptides?

On our stars Core Peptides comes out ahead, 3.8 to 2.9. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Geo Peptides is the cheaper of the two on the reference vial, $33.99 against $52 at Core Peptides. Both take cards. The widest gap between them is in paperwork, 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 Geo Peptides the certificates are open to anyone.

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.