I can't think of any reason why not -- although I find that sometimes I have reactions to chemicals in products that I've used for years, let alone new ones.
I'd recommend trying maybe 5 sq inches or less and see how it does, gradually adding if you don't have adverse effects.
Remember that sometimes the effects sneak up gradually and aren't obviously connected to what you've done - for instance, I used a shampoo a couple of weeks ago that added to my fatigue until I figured out they'd changed the formula and quit using it. Go figure!
Lynnwood, Lupus & Sjogren's ModeratorDIAGNOSING-LUPUS & LUPUS-RESOURCES
"Life is far too important to be taken seriously" - Oscar Wilde