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

Paramount Peptides or Umbrella Labs?

On our stars Paramount Peptides comes out ahead, 3.6 to 3.0. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Only Umbrella Labs lists the reference vial, so we cannot call the price question. Umbrella Labs takes cards and Paramount Peptides does not, which decides it for anyone who wants chargeback rights.

3.6 / 5
Editors’ rating, not reader reviews
Paperwork4.4
Company3.5
Price3.3
Shopping3.1
3.0 / 5
Editors’ rating, not reader reviews
Paperwork4.3
Company1.9
Price3.5
Shopping3.0

At a glance

Paramount Peptides

  • StatusTrading
  • BasedIrvine, CA
  • Trading since2012
  • Outside laboratoryYes
  • Laboratory namedJanoshik
  • Certificates open to allYes
  • Certificates per lotYes
  • Reference vialNot listed
  • Free shipping from$500
  • Ways to payNot stated
  • Ships abroadNo
  • ShelfAbout 78; vials, capsules, blends
  • FDA letterNone on record

Umbrella Labs

  • StatusFDA letter on file
  • BasedTucson, AZ
  • Trading sinceNot published
  • Outside laboratoryYes
  • Laboratory namedMZ BioLabs, Vanguard Laboratory
  • Certificates open to allYes
  • Certificates per lotNot verified
  • Reference vial$48.99
  • Free shipping from$0
  • Ways to paycard, crypto, ach
  • Ships abroadNo
  • ShelfNot counted; vials, blends, nasal, capsules, bulk
  • FDA letterYes, 2021-05-18

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

Reader questions

So, Paramount Peptides or Umbrella Labs?

On our stars Paramount Peptides comes out ahead, 3.6 to 3.0. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Only Umbrella Labs lists the reference vial, so we cannot call the price question. Umbrella Labs takes cards and Paramount Peptides does not, which decides it for anyone who wants chargeback rights. The widest gap between them is in company, where Paramount Peptides leads.

Can I read a certificate from each before I order?

At Paramount Peptides the certificates are open to anyone and each one is tied to a lot. At Umbrella Labs 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.