What is the difference between Blue and Black Ox.

/What is the difference between Blue and Black Ox.

What is the difference between Blue and Black Ox.

You can take Black Ox or Black Ox if you want to boost your test. You can also take them together. Black OX isn’t something you would take year round Blue OX you can take year around. Black OX would be more like 30-60 days on 30-60 off.