Can anyone recommend an inexpensive over the counter cleanser with a ph 5.5 or less.

Hi,
These are some that I have found. I don't use them but I do have a list of the ph of some cleansers.

Neutrogena Deep Clean Facial Cleanser 3.8-4.6

Neutrogena Deep Clean Cream Cleanser 2.8-3.8

Neutrogena Extra Gentle Cleanser 5.6-6.2

Neutrogena Pore Refining Cleanser 3.7-4.2

Hope that helps.