Container volume and concentration are different fields
A 30 mL liquid label describes a bottle volume. A concentration such as mg/mL describes the recorded amount per unit volume. On the L-Carnitine listing, concentration options share a bottle format, so the selector should be checked before comparing price.
Read the selected variation
The Tesamorelin product has multiple quantities on one product page. Review the selected option, updated image and price together. Do not infer the variation from an old search result or the first photograph alone.
Watch for different unit systems
Some entries use microgram or international-unit notation rather than milligrams. Keep the original unit in the procurement record and ask for clarification when the basis of a label is unclear. Browse research liquids to compare the recorded label fields.