It can be difficult to determine which SARMs are best for lean muscle building because different body types respond differently to them. Almost all SARMs boost muscle gain, but some have a stronger effect than others.
Top-tier SARMs for muscle gain include:
Compared to some other brands, they also offer really good performance. RAD-140, Ostarine, and MK-677 are well-known for boosting muscle growth explosively and making gaining muscle much easier.
If you want to gain a lot of muscle quickly, consider using one of the above SARMs.