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 QSC?

On our stars Ascension Peptides comes out ahead, 3.7 to 2.8. Ascension Peptides lets you open its certificates before you order; QSC does not, and for a first order that gap matters more than any price. Ascension Peptides takes cards and QSC does not, which decides it for anyone who wants chargeback rights.

3.7 / 5
Editors’ rating, not reader reviews
Paperwork5.0
Company2.7
Price3.0
Shopping3.7
QSC
No. 28 of 49 · read the review
2.8 / 5
Editors’ rating, not reader reviews
Paperwork2.0
Company3.9
Price3.5
Shopping2.4

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

QSC

  • StatusTrading
  • BasedQingdao, Shandong
  • Trading since2008
  • Outside laboratoryLimited
  • Laboratory namedJanoshik Analytical Laboratories
  • Certificates open to allNot verified
  • Certificates per lotNot verified
  • Reference vialNot listed
  • Free shipping fromNot stated
  • Ways to paycrypto, wire
  • Ships abroadYes
  • ShelfAbout 75; vials, bulk
  • FDA letterNone on record

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

Reader questions

So, Ascension Peptides or QSC?

On our stars Ascension Peptides comes out ahead, 3.7 to 2.8. Ascension Peptides lets you open its certificates before you order; QSC does not, and for a first order that gap matters more than any price. Ascension Peptides takes cards and QSC does not, which decides it for anyone who wants chargeback rights. 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 QSC we could not find certificates posted openly.

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.