Indirectly promotes fat loss in our liver Promotes fat loss Increases our mitochondria count SR9009 is a unique compound that is classified as a ReV-Erba agonist. That means it’s not a selective androgen receptor modulator (SARM) like many think. The half-life of SR9009 is only roughly 4 to 5 hours. An increase in endurance is also one of the main reasons that so many athletes take this compound. You will be able to almost instantly see this effect, approximately 20minutes after your first dosage. Most people get a 50-60% increase in their endurance.