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

Ascension Peptides or Extreme Peptides?

On our stars Ascension Peptides comes out ahead, 3.7 to 2.7. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Only Extreme Peptides lists the reference vial, so we cannot call the price question. Both take cards.

3.7 / 5
Editors’ rating, not reader reviews
Paperwork5.0
Company2.7
Price3.0
Shopping3.7
2.7 / 5
Editors’ rating, not reader reviews
Paperwork1.4
Company3.3
Price3.5
Shopping3.2

At a glance

Ascension Peptides

  • StatusTrading
  • BasedKansas City, MO (mailing address on contact page)
  • Trading sinceNot published
  • Outside laboratoryYes
  • Laboratory namedKovera Labs, MZ Biolabs
  • Certificates open to allYes
  • Certificates per lotYes
  • Reference vialNot listed
  • Free shipping fromNot stated
  • Ways to paycard, ach
  • Ships abroadNo
  • ShelfAbout 42; vials, blends
  • FDA letterNone on record

Extreme Peptides

  • StatusTrading
  • BasedUS
  • Trading since2010
  • Outside laboratoryNot verified
  • Laboratory namedNone
  • Certificates open to allYes
  • Certificates per lotNot verified
  • Reference vial$48.99
  • Free shipping from$99
  • Ways to paycard, crypto, ach
  • Ships abroadNo
  • ShelfNot counted; vials, bulk
  • FDA letterNone on record

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

Reader questions

So, Ascension Peptides or Extreme Peptides?

On our stars Ascension Peptides comes out ahead, 3.7 to 2.7. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Only Extreme Peptides lists the reference vial, so we cannot call the price question. Both take cards. The widest gap between them is in paperwork, where Ascension Peptides leads.

Can I read a certificate from each before I order?

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