There's no question, women need to be even more careful then men when using performance enhancing drugs (PED's), after all, many of these are as said "Male Hormones" and when too much of an imbalance is created, this is when many women run into trouble.
One of the questions to address, is your girl looking to hit the bodybuilding stage or is she looking for the figure or fitness stage? Yes, PED's play a role in all three of these but the extent is greater for the bodybuilder.
Now I'm not a big fan of females using testosterone, but many female bodybuilders do so. If she does, the dose will need to be very low, and that goes for any PED she uses but probably more so for test. Personally, bodybuilder or figure competitor, she can do quite well without test, so IMO I would personally scratch that from the book.
Her best options:
Anavar
HGH
Clen
t-3
Nolva
Primobolin
Stanzanol
Out of that list, for any female looking to use a PED, Anavar should be the first choice every single time. It is one of the mildest steroids on the planet, one of the safest and one of the most side-effect free. Most women do well on a 10mg per day dose, that's a good place to start. She could eventually end up taking as much as 20mg every day but that should be way down the line...10mg per day should do wonders for her.
HGH, great for helping her stay lean or even becoming leaner. Keep her dose around 1-2iu per day. When women start getting into higher doses, many times, not all the time, but many times this is when they begin risking facial structure reforming...when you see forehead growth, jawline extension, etc.
Steroids like Primo and Stanzanol...stanzanol would be my last choice for a female and really only if she's looking for extra growth in the off-season. Keep the duration short and the dose very, very low...primo should also be run for very short periods and at a low dose but it can be a good addition to a woman's precontest diet for a short run. If her voice starts getting a little scratchy, which can often happen with primo for women, if she doesn't want her voice to lower permanently, go ahead and drop the primo when the scratchy sound shows itself...she'll be fine...it's when you wait too long that it becomes a problem.
Nolva, great for the end of precontest and will really help her harden up. A few wks at the end at say 10mg per day works well.
Clen and t-3, great for leaning out, can be run the same as a male runs it, only at a lower dose...pretty much side effect free.
A good stack for her:
Anavar
HGH
Clen + T-3
Finish with the addition of nolva the final wks in conjunction with everything else.
This would be a good place to start and in many cases all she'd really need. If she's wanting more later on down the line, add in primo for a short 4 or 5wk run.
The truth, there are no guarantees that she won't experience any side effects, she very well may, but the cycle of anavar, hgh, clen, t-3 and nolva is still the safest bet. Sure, she may notice a little extra peach fuzz pop up in places, often this can go away after she discontinues, she may also notice her hair slightly thin out, but not much and not often. It is very unlikely that she'd experiance any clit growth from this cycle, impossible no, but unlikely. Will this stack turn her into a manly woman? Absolutely not.