A 30 ml rectangular glass bottle can hold compatible facial serums, cosmetic oils or liquid sprays. The flat sides create defined surfaces for labels. Choose the accompanying dropper, pump or sprayer based on how the formula needs to be dispensed.

Measure the flat panel you intend to label and leave clearance around its edges. Print a paper mockup at the proposed size, then check its position on a sample. Keep essential text readable when the bottle is held upright.

The page lists 30 ml rectangular bottles with white and black treatment pumps, along with dropper and spray designs. Select the matching product listing. Check the pump's output and ability to dispense your serum during a sample trial.