What is this page?
This page is an A-Z index of the peptide terms used across PDP's protocol and stack guides. Each entry gives a short, plain-English definition so you can read a guide without stopping to look up words.
Peptide Definitions
Peptide Definitions: Key Terms Explained
Short, plain-English definitions of the terms you will see across our protocol and stack guides.
A-Z Definitions Directory
K
- KLOW
A research-context name for a four-peptide blend of GHK-Cu, KPV, BPC-157, and TB-500, usually sold as an 80 mg vial.
What Is a Peptide Definition?
Peptide research uses a lot of technical words. This page explains them in simple language, so you can read a protocol without getting stuck.
Terms that have their own guide on PDP link straight to it. For a broader look at compounds and how they are grouped, browse the protocol library or the stack guides.
Recently Updated
- October 26, 2026: KLOW: New overview of the four-peptide blend, its research, and FDA status.
Frequently Asked Questions: Peptide Definitions
How are the definitions organized?
Terms are listed in alphabetical order. Use the letter links at the top of the directory to jump to a section. Where a term has its own guide on PDP, the entry links to it.
Is this medical advice?
No. Peptide Dosing Protocols is an independent educational reference. The definitions explain terms for research purposes only. Consult a licensed healthcare provider before considering any compound.