A nominal capacity is a container designation
The named capacity of a vial is not a universal instruction to fill it to the rim. Container geometry and the agreed product presentation matter. Packaging images should preserve plausible space at the shoulder and closure.
A dry appearance does not reveal the amount
The visible height of a dry cake or powder cannot by itself establish the material amount. Formulation context and physical presentation can affect appearance. A source list in mg should not be used to invent an exact visual height.
Align the final artwork
Review the bottle type, material form and specification before artwork approval. Keep the logo and research-use statement legible, and avoid a visual that falsely implies a different supplied form.