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Each Peptide Explained

One peptide at a time, in plain language. Each explainer is guided by a character from the Peptide Curious cast — the "I'm a cell and I don't feel so well" series — with a short animation, a mechanism diagram, and a summary of what published research does and doesn't show.

What is a Peptide?
How to read these. These pages summarise laboratory and animal research plus review articles. Most of the human evidence is limited or preliminary. Nothing here is a recommendation to use any compound, and none of it is dosing guidance.
BPC-157 mascot
The Repair Crew

BPC-157

A 15-amino-acid fragment found in stomach juice, studied for tissue healing, blood-vessel support, and cellular protection.

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KPV mascot
Cooling Inflammation

KPV

A three-amino-acid tail of alpha-MSH, studied for turning down inflammatory signaling at the source.

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TB-500 mascot
Getting Resources There

TB-500

A synthetic fragment of Thymosin Beta-4, studied for helping repair cells move to where they're needed.

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GHK-Cu mascot
Clearing & Rebuilding

GHK-Cu

A copper-binding tripeptide, studied mostly in skin research for balanced tissue remodeling.

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MOTS-c mascot
The Power Plant Operator

MOTS-c

A mitochondrial-derived peptide, studied for switching on the cell's energy sensor (AMPK).

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Semax mascot
Mental Clarity

Semax

A synthetic peptide studied for supporting BDNF and brain-recovery pathways.

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SS-31 mascot
The Transmission Specialist

SS-31 (Elamipretide)

An engineered peptide studied for stabilising the inner mitochondrial membrane.

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NAD+ mascot
The Cellular Energy Carrier

NAD+

A coenzyme central to cellular energy metabolism, DNA repair, and aging research.

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GLP-3 mascot
The Triple-Signal Coordinator

GLP-3

Our name for triple-receptor agonist research — GLP-1, GIP, and glucagon in one peptide.

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Glutathione mascot
The Cellular Defender

Glutathione

A tripeptide and the body's most abundant intracellular antioxidant.

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Educational and editorial content only. Not medical advice. Content may discuss emerging or investigational research not approved for clinical use.