---
title: "What is a peptide blend?"
canonical_url: https://peptidelibrary.app/faq/what-is-a-peptide-blend
updated: 2026-08-30
publisher: Peptide Library
notice: "Research and educational use only. Not medical advice."
---

# What is a peptide blend?

A peptide blend combines two or more peptides in a single vial, sold under one name — GLOW, KLOW and CJC-1295 + Ipamorelin are common examples.

**Why the label can mislead**

Those are very different products at the same price, and vendors are not consistent about which they mean. Always find the per-component breakdown before comparing.

**How to compare a blend fairly**

- **Per-component mass.** Work out the milligrams of each peptide, not the headline total.
- **Price per mg of the component you actually care about.** A blend can look cheap while the ingredient you want is a small fraction of the vial.
- **The ratio is fixed.** Both peptides share one vial and one diluent volume, so a single draw delivers both in whatever proportion the vendor chose. You cannot adjust one without adjusting the other.
- **Documentation.** A blend needs purity and identity testing for each component, not one certificate for the mixture.

**Reconstitution**

Each component has its own concentration derived from its own mass in the shared water volume. Pick the water volume so the component with the tighter requirement lands on a readable syringe mark; the other is then fixed by the ratio. The [reconstitution calculator](/calculator) handles multi-peptide blends directly.

See also [how to compare blends](/faq/why-are-some-peptides-sold-as-blends-and-how-should-i-compare-them) and [price per mg](/faq/how-is-price-per-mg-calculated). Research use only. Not medical advice.

Note: Dose figures are left out of this Markdown version. See the cited sources.