Authorisation first
Listing designer names you are not authorised to resell reads as counterfeit. This is the single biggest risk in the category and it is an account-level one, not an ad-level one.
Search behaviour is almost entirely branded
People search the exact fragrance, size and concentration — "eau de parfum 50ml", not "nice perfume". Titles need name, size and type or you match nothing useful.
Margin is thin and comparison is one click away
Widely available products mean price is visible next to your ad. Sets and bundles usually carry the account better than single bottles, because they move AOV without touching CPC.
More: the perfume vertical page.