Lyophilised (freeze-dried)
Lyophilised means freeze-dried: frozen, then dried under vacuum so the water leaves without the material ever melting.
Peptides degrade in water, so they are shipped dry. What is left is a solid — often a thin film or a small puck rather than a visible pile, because the quantity is genuinely tiny.
Seeing very little in the vial is normal. A 10 mg quantity is ten thousandths of a gram, and some of it can appear to be nothing more than a residue on the glass.
For example
A vial labelled 10 mg may look almost empty. Ten milligrams of a light powder is roughly the volume of a few grains of salt.
What it is not
Lyophilised is not the same as 'expired', 'damaged' or 'poorly made'. It is the intended state. A powder that has visibly shifted or coats the side of the vial has usually just moved in transit.