Exploring a note
Patchouli perfume for beginners
For a first patchouli perfume, compare the earthy or warm impression within the whole composition. A floral or aromatic blend can give a different introduction from the stereotype you may associate with patchouli alone.
A HUME Fragrance buying guide

Start with a known preference
If you enjoy floral or citrus directions, inspect a patchouli-containing example in that context. It can be easier to understand a new note beside familiar supporting impressions.
Observe the later character
Record whether the fragrance becomes warmer, earthier or simply more rounded to you. There is no requirement to name patchouli separately for the trial to be useful.
Choose from actual experience
If a candidate does not suit you, identify the quality that bothered you. That is more useful than deciding every patchouli listing will smell identical.
Try this before you buy
Describe the full sample first, then note whether the patchouli listing helps explain any part of your later impression.