GW-501516 (Cardarine), MK-677 (Ibutamoren) and SR-9009 (Stenabolic) do not belong to the SARMs family.
This might be a bit confusing, but it’s because of how vendors market the products. You’ll often see vendors list them as SARMs because it’s convenient.
GW-501516 (Cardarine) is what they call a PPAR Agonist. It’s known for giving enormous endurance and performance boost. By improving cardiovascular performance, Cardarine will also help stimulate fat loss. It’s often referred to as exercise in a bottle. At 10-20mg a day you’ll be able to take your intensity to the next level.
MK-677 (Ibutamoren) is a growth hormone secretagogue. What Ibutamoren does is that it raises growth hormone (GH) and insulin-like growth factor (IGF-1) levels. What makes MK-677 so special is that it’s one of the very few compounds that is able to give growth hormone levels a boost. Even at a low dosage of 10 to 20mg, you can expect it to increase performance, burn fat and even help build muscle.
SR-9009 (Stenabolic) is very comparable to GW-501516 (Cardarine). It’s a Rev-Erba Agonist which makes it a great fat burner. Not only does it help with burning fat, but it’ll also significantly improve endurance just as Cardarine does. The recommended dosage for Stenabolic is anywhere from 10 to 30mg a day, this seems to be the sweet spot for most researchers.