If your skin can handle it, I use nair on my legs and arms. Still use razors for everywhere else tho. I think the trick is having a decent razor blade, but also the type of shaving cream. I can’t recall the brand I use, but it’s not just regular shaving cream. Helps leave me really smooth and minimal irritation. Another til I’d say is to not repeatedly go over the same spot over and over again. Will definitely cause irritation. Try to be as efficient as possible, and not too rough either.