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The verified standard in research peptides

It all starts with a chain...

For Research Use OnlyShop peptides
Attest Biosciences CJC-1295 vial
Attest Biosciences Selank vial
Attest Biosciences Semaglutide vial
Attest Biosciences BPC-157 vial
Attest Biosciences Epitalon vial
Attest Biosciences NAD+ vial
Attest Biosciences Retatrutide vial

Every vial, attested.

100% guaranteePurity-match & safe-arrivalSame-day shippingBefore 2:00 PM CT, cold-packedUSA-basedResearch use only

Research areas

Browse by what you study.

View all compounds
Metabolic ResearchTissue Repair & RecoveryCognitive / NeuroLongevity / CellularCosmeticResearch Supplies
Retatrutide
PS-101·Metabolic Research

Retatrutide

Triple GLP-1 / GIP / glucagon receptor agonist under study.

Lab verified99.2% pure
from
$87.21
In stock
Tirzepatide
PS-102·Metabolic Research

Tirzepatide

Dual GIP / GLP-1 receptor agonist, extensively studied.

Lab verified99.4% pure
from
$49
In stock
BPC-157
PS-201·Tissue Repair & Recovery

BPC-157

Body-protection compound studied in tissue-healing models.

Lab verified99.3% pure
from
$37.74
In stock
TB-500
PS-202·Tissue Repair & Recovery

TB-500

Thymosin β4 active fragment studied in recovery models.

Lab verified99.1% pure
from
$53.21
In stock
GHK-Cu
PS-501·Cosmetic

GHK-Cu

Copper tripeptide-1 studied for skin and collagen.

Lab verified99% pure
from
$47.02
In stock
NAD+
PS-401·Longevity / Cellular

NAD+

Nicotinamide adenine dinucleotide, cellular cofactor.

Lab verified99.4% pure
from
$75.04
In stock
Semaglutide
PS-103·Metabolic Research

Semaglutide

GLP-1 receptor agonist with a deep clinical literature.

Lab verified99.3% pure
from
$67.01
In stock
MOTS-C
PS-403·Longevity / Cellular

MOTS-C

Mitochondrial-derived peptide studied in metabolism.

Lab verified98.9% pure
from
$66.79
In stock

Stacks & kits

Pre-built the way the research pairs them.

Bundled at a set price with reconstitution supplies included. The saving versus buying the parts separately is shown on every kit.

Metabolic ResearchSave $58

Metabolic Starter Kit: Beginner

The entry metabolic bench set: Semaglutide (a GLP-1 reference compound) with Tesamorelin, plus the water to reconstitute them. 10 syringes and a 10-pack of alcohol prep pads are included free, an added bonus with every starter kit.

  • Semaglutide
  • Tesamorelin
  • Bacteriostatic Water
  • 10 insulin syringes (Free)
  • 10 alcohol prep pads (Free)
$149$207
Metabolic ResearchSave $33.99

Metabolic Starter Kit: Intermediate

Steps up to Tirzepatide (a dual GIP / GLP-1 agonist) alongside Tesamorelin, with reconstitution water included. 10 syringes and a 10-pack of alcohol prep pads are included free, an added bonus with every starter kit.

  • Tirzepatide
  • Tesamorelin
  • Bacteriostatic Water
  • 10 insulin syringes (Free)
  • 10 alcohol prep pads (Free)
$155$188.99
Metabolic ResearchSave $22.20

Metabolic Starter Kit: Advanced

The top tier: Retatrutide (a triple GLP-1 / GIP / glucagon agonist) with Tesamorelin, plus reconstitution water. 10 syringes and a 10-pack of alcohol prep pads are included free, an added bonus with every starter kit.

  • Retatrutide
  • Tesamorelin
  • Bacteriostatic Water
  • 10 insulin syringes (Free)
  • 10 alcohol prep pads (Free)
$205$227.20
All stacks

What researchers say

4.8 average, 3,124 reviews.

Read all reviews
“The lot number on the vial matched the COA in the hub exactly, and I verified it on the lab's own portal. That's the whole reason I switched.”
@lab_m.reyes · Order #PS-48213Verified purchase · 2026-06-18
“Ordered before the cutoff, shipped the same day with a cold pack, arrived in two days tracked. No surprises.”
@bench.notes · Order #PS-47790Verified purchase · 2026-06-09
“HPLC came back at the listed purity and the mass-spec identity confirmation was included in the PDF. Documentation is thorough.”
@k.oyelaran · Order #PS-46655Verified purchase · 2026-05-27
“Asked about a batch that had been retested. They pointed me to the revision history on the COA rather than hand-waving it. Appreciated the transparency.”
@r.duval_research · Order #PS-45902Verified purchase · 2026-05-14

Reviews are collected post-delivery and screened to exclude any human-use or dosing-outcome claims before publication. That moderation is disclosed, not silent.

The guarantee

100% purity-match & safe-arrival guarantee

Every order is covered on two things and stated plainly: the vial matches its published COA, and it arrives. Nothing about outcomes from use.

Read the full terms
What it covers
  • ✓Product integrity: the compound and purity match the COA for its lot, verified through the lot/batch system.
  • ✓Safe arrival: lost, damaged, or never-delivered orders are automatically reshipped or refunded past the stated delivery window.
What it does not cover
  • ✕Any outcome, result, or effect from use of the product. These are Research Use Only materials and no efficacy is claimed or guaranteed.

Learn

Depth you can check.

Knowledge hub
science

Peptide Science 101

What research peptides are, how they're made, and how to read the numbers on a product page.

6 min read →
trust

What 'Research Use Only' Actually Means

The RUO constraint in plain language, and why we publish rigorous lab data anyway.

4 min read →
trust

How to Evaluate a Research-Peptide Vendor

A checklist you can apply to any vendor, including this one.

5 min read →

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First order

10% off your first order.

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