**What Are Peptides?**

Peptides are biologically active compounds composed of two or more amino acids linked together by **peptide bonds**. A peptide bond is a covalent chemical bond formed when the **carboxyl group (C-terminus)** of one amino acid reacts with the **amino group (N-terminus)** of another in a **condensation reaction** (releasing a water molecule). This bond (CO-NH) creates the backbone of peptides, also known as **amide bonds**.

The term *”peptide”* originates from the Greek word *”πέσσειν” (péssein)*, meaning *”to digest.”* Peptides are fundamental to biochemistry, with thousands naturally occurring in the human body and animals. Scientists also continuously discover and synthesize novel peptides in labs, unlocking groundbreaking potential for **health, wellness, and pharmaceutical advancements**.