

Companion animal research
Advanced science.
Extraordinary companions.
Engineered Nutrition and Optimization Science
Named for the first of a new generation. We help researchers rebuild from the inside out.
The ENOS collection
One standard. Every companion.
A focused collection of peptide compounds, clear product information, and convenient research supplies — all under the ENOS PetBio name.
Find a protocol for your companionExplore each peptide’s identity, ingredients, and research context.
Review product information and analytical documentation.
Tracked delivery and free shipping on qualifying $75 orders.
Choose a monthly subscription for 15% off repeat orders.

About ENOS PetBio
Companion animals are at the heart of our collection. From BPC-157 and TB-500 to GHK-Cu and Epitalon, explore research compounds with the information you need in one place.
Explore the collection
A little clarity
Product information, refills, and the essentials before you order.
Our catalog covers canine, feline, and equine research. Review each product’s information and consult your veterinarian; protocols are not interchangeable across species.
Each product page includes its compound description, ingredients, usage information, and available purchase options. Your veterinarian should guide any animal-use protocol.
A COA documents a batch’s analytical testing, including identity and purity. Review the batch documentation before beginning your research.
Follow the storage guidance on the product label and product page. Reconstituted products may require refrigeration and have a shorter usable period.
Select Subscribe & Save on a product page for 15% off monthly refills. You can skip, pause, or cancel your subscription.
Standard checkout shipping is $8.95, with free shipping when your merchandise total after discounts reaches $75. Final shipping and taxes are shown at checkout.
Your first-order subscriber credit is $25 without another code. If you apply a discount code, the credit becomes $5 on top of that code. The credit is one-time use.
Why ENOS
Hebrew for man, mortal human. Seth's son in Genesis, born when men began to call upon the name of the Lord.
In biology, the enzyme that produces nitric oxide, central to blood flow, recovery and heart health.