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

Blue Sky Peptide or Peptide Pros?

On our stars Peptide Pros comes out ahead, 3.4 to 3.1. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Blue Sky Peptide is the cheaper of the two on the reference vial, $42.87 against $47.25 at Peptide Pros. Peptide Pros takes cards and Blue Sky Peptide does not, which decides it for anyone who wants chargeback rights.

3.1 / 5
Editors’ rating, not reader reviews
Paperwork3.1
Company2.2
Price4.9
Shopping3.3
3.4 / 5
Editors’ rating, not reader reviews
Paperwork3.3
Company2.6
Price4.1
Shopping4.0

At a glance

Blue Sky Peptide

  • StatusTrading
  • BasedUS
  • Trading since2013
  • Outside laboratoryYes
  • Laboratory namedNone
  • Certificates open to allYes
  • Certificates per lotNot verified
  • Reference vial$42.87
  • Free shipping from$75
  • Ways to payNot stated
  • Ships abroadNo
  • ShelfAbout 70; vials, liquids, blends, bulk
  • FDA letterNone on record

Peptide Pros

  • StatusTrading
  • BasedMiami Beach, FL
  • Trading since2013
  • Outside laboratoryLimited
  • Laboratory namedMZ Biolabs
  • Certificates open to allYes
  • Certificates per lotYes
  • Reference vial$47.25
  • Free shipping from$150
  • Ways to paycard, ach, crypto, wire
  • Ships abroadYes
  • ShelfNot counted; vials, blends, bulk
  • FDA letterNone on record

Both companies sell materials labeled for laboratory research use only. Full reviews: Blue Sky Peptide · Peptide Pros.

Reader questions

So, Blue Sky Peptide or Peptide Pros?

On our stars Peptide Pros comes out ahead, 3.4 to 3.1. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Blue Sky Peptide is the cheaper of the two on the reference vial, $42.87 against $47.25 at Peptide Pros. Peptide Pros takes cards and Blue Sky Peptide does not, which decides it for anyone who wants chargeback rights. The widest gap between them is in price, where Blue Sky Peptide leads.

Can I read a certificate from each before I order?

At Blue Sky Peptide the certificates are open to anyone. At Peptide Pros 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.