Using fragrance formats
How to use a 3ml perfume sample
Use a 3ml sample to learn the exact scent's development rather than rushing to finish it. Follow its application directions and keep the name linked to your observations.
A HUME Fragrance buying guide

Start with identity
Save maker and exact fragrance name. Similar small vials can be confused easily.
Keep the trial readable
Try one unfamiliar fragrance at a time on a suitable ordinary day, recording the applicator and setting.
Repeat what interests you
A favorite deserves another wear before a bottle decision. Do not assume a fixed spray count or number of days from volume alone.
Try this before you buy
Record opening, later character and repeat interest for one clearly named sample.