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Abstract copper-coloured tripeptide molecule floating in blue plasma

GHK-Cu: A Comprehensive Research Overview

Research Overview 19 May 2026 11 min read By the OP Labs editorial team It is present in your blood right now — a tiny three-amino-acid molecule that researchers believe may play a far larger role than its size would suggest. Illustrative rendering of a copper tripeptide in solution. OP Labs · Research Key facts […]

Abstract visualisation of mitochondria interior with glowing blue membranes and golden energy particles

NAD+: The Molecule Behind Every Spark of Cellular Energy

Cellular Energy 11 min read By the OP Labs editorial team By the time you reach fifty, research suggests your tissues may hold substantially less NAD+ than they did at twenty — and scientists are still working out exactly what that means. Abstract visualisation of mitochondrial energy production. OP Labs · Research NAD+ is not […]

Vintage laboratory flask with blue liquid and warm golden light

From Insulin to Now: A Century of Peptide Discovery

History 10 min read By the OP Labs editorial team In 1921, a young surgeon with no research funding and a half-formed idea walked into a university laboratory and changed medicine forever. A century of peptide discovery, told through its turning points. OP Labs · Research His name was Frederick Banting. He was not a […]

Three translucent molecular structures at different scales side by side

Letters, Words, Sentences: Peptides vs Proteins vs Amino Acids

Fundamentals 8 min read By the OP Labs editorial team They are all made from the same twenty building blocks — so why do scientists treat them as completely different things? Amino acid, peptide, protein — one continuous chemistry, three behaviours. OP Labs · Research It is a fair question, and a common source of […]

Abstract molecular key fitting into a glowing cell receptor

Lock, Key, Signal: How Peptides Actually Work

How it Works 11 min read By the OP Labs editorial team Change a single amino acid in a chain of forty, and you can turn an active signal into something entirely inert. A peptide meets its receptor — the moment of recognition. OP Labs · Research That sensitivity is the heart of how peptides […]

From Cone Snail Venom to the Lab Bench: Where Peptides Really Come From

Origins 11 min read By the OP Labs editorial team One of the most powerful painkillers ever developed came from the venom of a marine snail barely five centimetres long. The cone snail — a five-centimetre fisher of peptides. OP Labs · Research The cone snail is slow, beautiful, and lethal. It hunts fish by […]

Abstract molecular chain of amino acid beads connected by luminous bonds in deep blue space

What Is a Peptide? The Tiny Molecule Your Body Already Speaks

Beginner’s Guide 8 min read By the OP Labs editorial team Your body produces thousands of distinct peptides — and science is only just beginning to map what they all do. Illustrative rendering of a short peptide chain. OP Labs · Research Some carry messages between cells. Some defend against invading bacteria. Some hold tissue […]

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