MY HRT clinic gave me script for 400mgs test a week....This is the second clinic that said I need 400 a week....my natty level was 280-260ngs
Put simply, that's bullshit. I'm guessing that you are using one of the Anabolic Androgenic Steroids (AAS) outlets that market themselves under the guise of TRT.
Regardless, the only way to know the appropriate dosage is with follow-up bloodwork. 100mg/week typically brings a man to the upper part of the normal range. Some guys need a little more, some guys need a little less, but without a doubt, 400mg/week will bring you to supraphysiological levels.
As such, the appropriate and healthy dosage varies from person to person.
If you are interested in real and legitimate testosterone replacement therapy (TRT), then check out: