SARMs are a group of drugs that act in a similar way to anabolic steroids but are more selective in the receptors they bind with. This allows them to give the same muscle building results without the negative side effects of steroids. SARMs can be used on their own but the best sarm stacks are made up of two or more to maximise the muscle growth they produce. This is why they are becoming more popular than steroids for bodybuilders who want to build muscles fast but without the risk of serious side effects.
The most powerful SARM stack for bulking is a combination of LGD 4033 (Ligandrol), RAD 140, and YK-11. These three compounds work together to build huge amounts of lean muscle mass in a very short amount of time. RAD-140 and YK-11 both act as myostatin inhibitors which reduce the breakdown of muscle tissue to allow it to grow larger. LGD 4033 is a strong androgen that stimulates the androgen receptors in both bone and muscle tissue to respond with impressive muscle growth.
To enhance the muscle building effects of this SARM stack we would recommend adding in a PPAR-delta modulator like Cardarine GW501516. This will up regulate glucose availability to spend on energy for your muscles and this is great for building strength, endurance, and even helping you burn more fat during the cutting phase.
For women who do not wish to see any androgenic effects, the Ostarine and Cardarine stack is a good choice. This does not build muscle size in the same way as for men but it can harden definition, increase strength and endurance, and of course help you burn fat during your cutting phase.