The next big (and undetectable) thing

Over the last several years, we've been introduced to many new names and acronyms for all sorts of Performance Enhancing Drugs (PEDs). THG, The Cream, The Clear, 6-OXO Extreme, HgH, Dura, etc....

So, with no further ado, ladies and gentlemen, the newest PED acronym: SARMs. From Will Carroll:

[The source] smiled. "Well, home runs are down, but I don't think that drug use is down. People point to positives being down, but that's because the ante has been upped. Players can't just use whatever they want any more. It was the Wild West just a few years ago, but guys are just being smarter about it now."

"...So what are the smarter guys doing now? What's the next THG?"

"Probably SARMs, which aren't even on the legitimate market yet, but you can find on the black market. They're a nightmare for testing officials."

I'd heard a bit about SARMs (Selective Androgen Receptor Modulators). The word on the street was that they had a powerful anabolic effect, but that it came from a completely different mechanism. "What do they do? I mean, how do they work and how effective are they?"
[...]
[The source] jotted a few things down on a napkin. Just numbers. "Testosterone has an anabolic rating of 100, and the anabolic rating for SARMs is reported in medical studies to be between 97-103. Testosterone is 100 because it's the gold standard, and all steroids are measured against it on that scale."

SARMs. And GNC's selling something in that neighborhood already.

Carroll goes on to conclude:

The meal was over, and neither of us were dawdlers. I had covered everything I'd hoped to and more in the hour I had. "So let me sum this up: You've got a drug that's as effective as anything you've ever had in your arsenal. It's undetectable, has no side effects, and only a few people have access to it."

He nodded and smiled. "Yes, and you know that insulin and IGF are in that arsenal too. IGF has been available on the black market for over a decade. Insulin is available at Walgreens."

"In other words, it's going to be a good year for the black hats?"

He laughed again. "The black hats always have a good year!"