VictoriaM, if you are a cycling woman, the best way is testing blood on the 21st day of your cycle. If you are post menopausal, it should be blood on any day.
In answer to your question though, yes, Genova Diagnostics also does saliva s*x hormone tests.
Can they do saliva tests for other hormones too?
I'd heard from a friend that you can't do that here and have had mine done by blood tests, which isn't always the best way for hormones.