Er... No faults?

For normal people? Sure.

For people who don't mind replacing large portions of their bodies with mechanical parts to the point of nearly losing their own humanity, I don't see how it'd really merit very much consideration.

Hey, even cyberfreaks gotta have a love life!

"All night, every night, and she'll never know. Also available in 'Midnight Lady.' +2 to Seduction rolls."

I love my CP2020 silliness.

Seriously, though, if a character starts using steroids very heavily I'd start applying stress on any bioware or delicate cyberware the character had involved unless they got it serviced very regularly. Why? Despite being biological, it's been pretty well established that bioware is a foreign object and can be damaged by shifts in body chemistry/integrity, which is precisely what steroids change. Furthermore, if the character has Betaware, or god forbid, Deltaware, both of those are tailored for an individual's biological patterns and hormonal mix, so as to not clash. If you start messing with that natural balance, they're going to get messed up, period. That's one of the reasons you have to service 'ware - to adjust them to the minor changes in body makeup/rhythym over time.

Furthermore, just from an RP perspective, who wants to go back to being a teenager? I'd rather get shot in the knees.

I think the oversimplification is a little dangerous here— especially the "explanation" of teenage acne and behavior patterns.

Anyway, artificial steroids, even taken under doctor supervision, are really fucking dangerous. Bone decalcification is becoming a serioud problem with the overprescription of steroids, and beware any doctor that is willing to prescirbe them you without trying pretty much anything else first. The complifications from steroid use, mcuh less abuse, are huge.

Uh... it's a cyberskull, not a cyberhead (scalp acne is a bitch).

I imagine DA would keep it from appearing where the armor is, but AFAIK that doesn't include the face.

You're confusing corticosteroids with anabolic steroids. They're different things. The steroids you are thinking of are more for reducing inflamation and have been used for arthritis. Which is where I believe this "decalcification" scare has come from. If a doctor gives something that tends to bleech calcium to someone already at risk for osteoporosis, it shouldn't be that shocking to see that the individual actually develops osteoporosis.

And again, anything is dangerous if abused. You can overdose on water if you drank enough.

Taking anabolic steroids for a single "cycle" is unlikely to have lasting damage. The user will have liver, reproductive, and circulatory side effects on top of a increased aggressive and irritable personality, but these are usually not dramatic enough (IMO) to cause a game effect and they usually fade after the individual stops taking the steroids.

If the player insists to continue, then start applying the Flaws, but assuming that anabolic steroids will automatically turn people in roid freaks is just as ignorant as the gym rats who assume that it's perfectly harmless.

FYI - During Britain's absolutely uninformed mass panic about Extasy during the mid-late nineties one girl was killed by drinking too much water. When she came home her parents force fed her water because the media had said that E causes dehydration and overheating. 8 hours later the girl was dead from salt depletion and everybody blamed the EVIL DRUG PUSHER AND HIS DRUGS, who turned out to be 17 and had got the pills at her insistance.