Welcome to Pephack

Peptides you can trust. Purity you can prove. Send any vial from your order to a pre‑approved testing facility and receive 50% of the test vial in store credit when you share the results with us!

VERIFIED RESEARCH EXCHANGE
SHOP NOW

Featured Product

Vials-Correct-Size-11

Thymosin Alpha 1 (Tα1)

 $53.10
, ,
Snap-8

Snap-8

 Price range: $44.10 through $308.10
,
IGF1-LR3

IGF1 -LR3

 Price range: $62.10 through $434.70
, ,
Glutathione

Glutathione

 Price range: $80.10 through $560.70
,
Epitalon

Epitalon

 Price range: $44.10 through $118.80
,
AOD-9604

AOD-9604

 Price range: $44.10 through $308.70
,
KLOW

KLOW

 Price range: $134.10 through $899.10
, ,
Vials-Correct-Size-9

GLOW

 Price range: $134.10 through $899.10
, ,

From our Blog

Testimonials

“Pephack’s peptides have consistently exceeded our expectations in purity and performance. Their products have become a cornerstone in our protein interaction studies — reliable, precise, and reproducible every single time.”

Dr. Emily Rogers, PhD – Molecular Biologist, Harvard Research Institute

“In biomedical research, quality control is everything. Pephack’s rigorous testing and documentation give me full confidence in my results. Their peptides have significantly improved the accuracy of our enzyme assays.”

Dr. Michael Tanaka, MD, PhD – Department of Biomedical Sciences, Kyoto University

“We’ve used multiple peptide suppliers, but Pephack stands out for both quality and customer support. Their peptides maintain excellent stability, even in complex formulations. It’s clear they understand the needs of serious researchers.”

Dr. Sofia Martinez, PhD – Senior Researcher, Genova Therapeutics

“Our lab relies on Pephack for peptide-based experiments involving receptor binding. The precision and consistency we get are unmatched. Their products have helped us accelerate data validation and publication timelines.”

Dr. Aaron Lewis, MD – Clinical Research Director, BioNext Labs

“Pephack’s peptides have proven invaluable in our immunogenicity studies. Their purity levels and reproducibility are exactly what high-impact research demands. I recommend them to any lab aiming for uncompromising standards.”

Dr. Priya Nair, PhD – Immunology Department, University of Toronto

Same Day shipping

All orders placed before 2pm eastern time zone will be shipped out the same day. Free Shipping

Free Shipping

Free USA shipping on all order over $250

Online Support

At Pephack Labs, we’re committed to supporting your research every step of the way.

purity 99%

Purity typically at or over 98%

Frequently Asked Questions

Pephack is committed to exceptional purity (typically ≥99%), consistency, and quality. Our peptides are synthesized using advanced methods and undergo rigorous QC testing to ensure reliability for critical research applications.

No. All Pephack products are strictly for research purposes only and are not intended for human or veterinary use, clinical trials, or therapeutic applications.

Store lyophilized peptide at −20 °C (or 2–8 °C short-term). Reconstituted solution should be refrigerated at 2–8 °C, protected from light.

Not yet! Soon we will proudly ship worldwide, ensuring our peptides are accessible to researchers across the globe. Shipping options and regulations vary by country.