Generally speaking 10mg-20mg is a fine dosing to serve any female purpose with 20mg per day being as far as most will want to go. While it is a mild steroid virilization probability can increase a fair amount when this dosing level is surpassed. Most women are highly advised to begin with 10mg per day and often this is all the Anavar they will ever need. If more is needed to achieve the desired result make sure you can handle the lower dose first before increasing it and if you do increase it you should use extreme caution and pay close attention to your body as to ensure virilization does not occur. In most cases 6 weeks of use will prove to be just about perfect with 8 weeks being about as long as most will want to go. If you need or desire more time it is advised you discontinue use for 4-6 weeks before beginning another course.
Transdermal patches (adhesive patches placed on the skin) may also be used to deliver a steady dose through the skin and into the bloodstream. Testosterone-containing creams and gels that are applied daily to the skin are also available, but absorption is inefficient (roughly 10%, varying between individuals) and these treatments tend to be more expensive. Individuals who are especially physically active and/or bathe often may not be good candidates, since the medication can be washed off and may take up to six hours to be fully absorbed. There is also the risk that an intimate partner or child may come in contact with the application site and inadvertently dose himself or herself; children and women are highly sensitive to testosterone and can suffer unintended masculinization and health effects, even from small doses. Injection is the most common method used by individuals administering AAS for non-medical purposes. 
One last point: Because steroids have all these side effects, a lot of abusers will then take other drugs to offset the effect—steroid abuse causes you to grow man-boobs, so people take another drug to mitigate those side effects. Guys who take steroids often also take augmenting drugs to decrease estrogen production or to improve athletic performance even further, like human growth hormone, insulin-like growth factor 1, insulin, erythropoietin, stimulants, diuretics, levothyroxine, and/or gamma-hydroxybutyrate, according to the study in FP Essentials . That means on top of all these side effects of steroids, most abusers are also looking at a whole separate list of effects from their peripheral drug habits.