Yes, for two reasons: 1) some pure fragrance oils can burn the skin if not diluted with alcohol, and 2) the alcohol facilitates a more even spreading on the skin before evaporation.

what kind of alcohol is best used in perfume making answer asap

I think this will answer your question: ' -- the odorless alcohol used in perfumery is ethanol. this is the same as grain alcohol, the same type that's in booze, and is therefore, strickly regulated and impossible to obtain. sd (special denatured) alcohol has additives, which are odorless but render the alcohol undrinkable. but, this is still very difficult to get ...impossible in some places. but there "are" sources, if you know where to look. A substitute for sd alcohol is an [almost] pure grain alcohol product called "everclear" (which is 95% alcohol). because of the stringent restriction placed on grain alcohol, there are certain states (including california, massachusetts, minnesota, ohio, oregon, pennsylvania, and washington) that restrict the sale [and import] of everclear (and other brands of this type of product). however, it can be purchased in arizona, colorado, illinois, indiana kentucky, louisiana, mississippi, nevada, new jersey, new york, north carolina, north dakota, oklahoma, texas virginia, washington dc, wisconsin, and wyoming. another alternative to sd alcohol is 100 proof vodka (50% alcohol) which is not ideal, but can be used if no other alternatives are available. ' http://home.earthlink.net/~skinesscentuals/Perf.html

any odorless drinking alcohol would work. or you could use whiskey or gin. what would it matter?