Yes and no. It matters the most
for leave on products. Like we get away everyday with using soap (pH 9-10) on our bodies, but our lotions and creams are pH 5-7 right where our skin likes to be. I use very nourishing creams and lotions, so maybe that's why I have no problem. I do know that if I do not use lotion, my skin gets really really dry and itchy.
jmo (and e)