Arimadex,aromasin,letro.
Mild, Medium, Strong.
Noobs should start with 1/4 mg every third day like RADAR Suggested.
If more is needed Increase to every other day.
If more is needed still Increase to everyday.
This more is needed after that Increased to .5 Everyday.
If more is needed after that increased to 1 mg everyday.
Is that still doesn't work switch to aromasin and start the same protocol...
Always start with low doses then work your way up if needed, it is a learning process everyone is different. There is no set perfect dose. You have to learn your dosage.
And MORE&STRONGER Isn't always better. These drugs has serious consequences and side affects and should not be taken lightly.
Some of which are dry painful joints and the possibility of removing too much E which will leave you feeling like SHIT And hinder gains.
That should be enough info to get to start it.
Good luck bro.