Will Tendskin work for me?

I think i have PFB, but i’m not sure. I have bumps that seem to be ingrown hairs on the back of my arms, the back of my legs, and my buttocks. It is weird because i haven’t even shaved or waxed my buttocks and the bumps are there. And on my arms and legs, they appeared long before I ever started waxing that area. So…will this Tend skin product be able to do anything for me or is this not even PFB?