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 Nexaph?

On our stars Nexaph comes out ahead, 3.2 to 3.1. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Only Blue Sky Peptide lists the reference vial, so we cannot call the price question. Nexaph 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
Nexaph
No. 15 of 49 · read the review
3.2 / 5
Editors’ rating, not reader reviews
Paperwork3.5
Company2.0
Price3.8
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

Nexaph

  • StatusTrading
  • BasedNot published
  • Trading sinceNot published
  • Outside laboratoryYes
  • Laboratory namedJanoshik Laboratory
  • Certificates open to allYes
  • Certificates per lotNot verified
  • Reference vialNot listed
  • Free shipping from$200
  • Ways to paycard
  • Ships abroadYes
  • ShelfAbout 60; vials, kits, ampules
  • FDA letterNone on record

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

Reader questions

So, Blue Sky Peptide or Nexaph?

On our stars Nexaph comes out ahead, 3.2 to 3.1. Both let you open a certificate before you spend anything, so paperwork will not separate them for most buyers. Only Blue Sky Peptide lists the reference vial, so we cannot call the price question. Nexaph 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 Nexaph 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.