75mcg is a pretty high dose of T3, in my opinion. even with a high about of gear, you can still get very flat and risk burning up your muscel tissue on a calorie restricte diet. i've seen females run 25mcg with no AAS and do well. but i've also found that females dont lose muscle easily. if you aren't going to use AAS, i would probably not use t3 and just stick to the clen alone.