Sample formats
Extrait de parfum sample size options
For extrait samples, confirm the exact interpretation before comparing size. Brands and sellers choose their own sample or travel formats, and a similarly named EDP sample does not necessarily represent the extrait's composition.
A HUME Fragrance buying guide

Check version identity first
An extrait may use a different balance of notes. Save the exact product name and source so your trial matches the item you may later buy.
Identify dabber or spray
Application mechanisms affect how you use the sample. Follow the specific directions rather than converting one format into an imagined equal dose of another.
Review the complete cost
A small volume can still be a meaningful purchase. Compare the listed quantity, packaging and final price instead of assuming the concentration label justifies any cost.
Try this before you buy
Record the exact extrait version and its supplied application method before deciding on the sample purchase.