Prof. PeptideProf. Peptide

Peptira Coupon Code: PROFPEPTIDE — Save 10%

Use discount code PROFPEPTIDE at Peptira to save 10% on your order. Prof. Peptide verifies this code directly with the vendor and updates it when it changes.

Your Discount Code

✓ Lab & COAs Verified
Shop Peptira

Key facts

Catalog
Peptide vials alongside tabletized raws, research liquids and lab supplies
Third-party testing
Freedom Diagnostics; Janoshik certificates not checked at the lab
Certificates of analysis
Public certificate library listing every product with its current lot and earlier lots, open without an account; certificates from Freedom Diagnostics and Janoshik
Prof. Peptide’s discount
10% off with code PROFPEPTIDE
Code checked
Prof. Peptide confirmed this rate on October 13, 2026.
Peptira logo

Overview

Peptira carries research peptides and blends, a bioregulator line, tabletized raws, research liquids and lab supplies, and ships from the United States. Its research account adds store credit and membership perks.

Peptira catalog & prices

Peptira's certificate library lists 84 products as currently shipping, grouped below by Prof. Peptide's research-library categories.

Metabolic & GLP-1
5-Amino-1MQ (vials and tablets), AOD-9604, Cagrilintide (CAG-4), MOTS-c, Retatrutide (RETA-3), Semaglutide (SEMA-1), Survodutide, Tirzepatide (TIRZ-2), AICAR, SLU-PP-332 (tablets)
Recovery & Tissue Repair
BPC-157 (vials and tablets), Cibinetide (ARA-290), TB-500, Wolverine Stack, the Phoenix Blend of KPV, TB-500 and BPC-157
Performance & Energy
IGF-1 LR3, SS-31
Growth Hormone
CJC-1295 (no DAC and with DAC), GH Stack, GHRP-6, Ipamorelin, Sermorelin, Tesamorelin
Cognitive & Nootropic
Adamax, PE-22-28, Selank, Semax, Dihexa (tablets)
Skin Health & Anti-Aging
AHK-Cu (raw), GHK-Cu (vials, tablets and raw), GLOW, KLOW, Melanotan I, Melanotan II, SNAP-8
Gut Health & Immunity
KPV (vials and tablets), LL-37, Thymosin Alpha-1, VIP
Sleep & Recovery
DSIP
Longevity
Epitalon (vials and tablets), FOXO4-DRI, Glutathione, NAD+
Bioregulators
Cartalax, Cortagen, Pinealon (tablets), Thymalin, Thymagen, Vilon
Sexual Health
Kisspeptin, Oxytocin, PT-141
Also listed
Methylene Blue (tablets); research liquids in 20 mL including L-Carnitine, Lipo-C XL, HSN Blend, PEEL'd and Pumptira
Supplies
Bacteriostatic water and acetic acid in 3 mL and 10 mL, phosphate-buffered saline and deionized water

Testing: Labs & Certificates of Analysis

Peptira states that every batch is third-party tested. Its public certificate library lists every product with its current lot and earlier lots; Peptira states that a vial's QR code opens the same record. On October 9, 2026 Prof. Peptide read all 340 certificate files there: 270 from Freedom Diagnostics and 70 from Janoshik. None of the 70 Janoshik certificates was checked at the laboratory.

The Freedom Diagnostics certificates were checked at the laboratory's own document store the same day: 267 of the 270 open there, 234 of them byte-identical to Peptira's copies and the rest re-issues with matching results. They report purity and net content for three vials, identity by liquid chromatography with mass spectrometry, appearance and endotoxin in duplicate, and the newest certificates add microbial, heavy-metal and fentanyl screens. Three of them, drawn at random from those 267 on October 9, 2026, are listed below with their own results: Tesamorelin 10mg (lot TESA10-010, analyzed May 1, 2026), Retatrutide 20mg (RETA-GLP3, lot RETA20-005, analyzed February 10, 2026) and PE-22-28 10mg (lot PE-22-10-001, analyzed February 10, 2026).

All products are sold for laboratory research use only.

Prof. Peptide Verification

Verified · October 9, 2026

We identified the lab, matched the certificates on its own website, and read every test result.

Lab identified

Passed

Freedom Diagnostics

Certificates verified

Passed

3 of 3 matched on Freedom Diagnostics’ own website.

The three certificates were tested on February 10 and May 1, 2026.

PE-22-28 10mg · lot PE-22-10-001

Passed

Freedom Diagnostics · tested February 10, 2026 · certificate Pept2602060161

  • Mass Identification — PE-22-28
  • Average Purity — 99.47%
  • Average Net Peptide — 9.77 mg
  • Appearance — White Lyophilized Powder
  • Passed: Endotoxin Replicate 1 — Pass (spec ≤0.05 EU/mL)
  • Passed: Endotoxin Replicate 2 — Pass (spec ≤0.05 EU/mL)

Retatrutide (RETA-GLP3) 20mg · lot RETA20-005

Passed

Freedom Diagnostics · tested February 10, 2026 · certificate Pept2602060145

  • Mass Identification — GLP RT
  • Average Purity — 99.92%
  • Average Net Peptide — 20.23 mg
  • Appearance — White Lyophilized Powder
  • Passed: Endotoxin Replicate 1 — Pass (spec ≤0.05 EU/mL)
  • Passed: Endotoxin Replicate 2 — Pass (spec ≤0.05 EU/mL)

Tesamorelin 10mg · lot TESA10-010

Passed

Freedom Diagnostics · tested May 1, 2026 · certificate Pept2604300176

  • Identity (LC-MS) — Tesamorelin
  • Purity (HPLC-UV) — 99.84%
  • Net Content Average — 9.85 mg
  • Appearance — White Lyophilized Powder
  • Passed: Endotoxin Replicate 1 — Pass (spec ≤0.05 EU/mL)
  • Passed: Endotoxin Replicate 2 — Pass (spec ≤0.05 EU/mL)

Payment and shipping

Peptira ships from the United States and includes shipping protection on every order. Peptira states that orders placed before 12 PM Mountain on a business day typically ship the same day, and no later than the next business day.

Delivery problems must be reported within seven calendar days, with a complete unboxing video for damaged, missing or incorrect items. Sales are final, orders cannot be changed once placed, and Peptira does not issue cash refunds.

Customer service

Customer service is reached by email at support@peptira.com or through the contact form, which routes order changes, delivery problems, damaged or mispacked orders and research questions to the support team, from 9 AM to 10 PM Mountain, seven days a week. Peptira states an average first response of 56 minutes. Orders can be tracked on the site with an order number and billing email, and mail goes to P.O. Box 391, Chadron, Nebraska 69337.

Ratings & reviews

Prof. Peptide checked Finnrick on October 9, 2026: it rates Peptira 71% across 8 tests (its pass rate, weighted toward newer tests).

Bought from Peptira? Tell Prof. Peptide how it went.

Similar vendors

Frequently Asked Questions

Does Peptira have a coupon code?
Yes. Code PROFPEPTIDE takes 10% off at Peptira. Prof. Peptide verifies this code directly with the vendor and updates it when it changes.
Why does Peptira ask for an account?
Peptira opens its store to research accounts: signing in shows pricing, checkout, store credit and membership perks, and the catalog opens once you are in. The certificate library, contact page and policies are public.
What does Peptira carry?
Research peptides and blends across metabolic, recovery, growth-hormone, cognitive, skin, immune and longevity research, including retatrutide, semaglutide, tirzepatide and cagrilintide (listed as RETA-3, SEMA-1, TIRZ-2 and CAG-4), a bioregulator line, tabletized raws, research liquids and lab supplies. Its certificate library lists 84 products as currently shipping.
What are RETA-3, SEMA-1, TIRZ-2 and CAG-4?
Retatrutide, semaglutide, tirzepatide and cagrilintide. Freedom Diagnostics certificates in Peptira's own library name each compound as the identity result, and Prof. Peptide opened each at Freedom's document store on October 9, 2026.
How do I check a Peptira certificate?
Scan the QR code on the vial or find the batch number in the certificate library at peptira.com/coa-library. Each Freedom Diagnostics certificate prints a search code that opens the same report at Freedom's own document store. Prof. Peptide drew three certificates on October 9, 2026 and found each byte-identical at the lab.
How fast does Peptira ship?
Peptira states that orders placed before 12 PM Mountain on a business day typically ship the same day, and no later than the next business day. Orders ship from the United States with shipping protection included.

Affiliate disclosure: Prof. Peptide is independently operated and may earn affiliate commissions when you use our discount codes or buy through our links, at no additional cost to you. Affiliate relationships never determine vendor inclusion, ranking, verification, or our editorial conclusions.