What selectivity means
SARMs were designed to study selective androgen-receptor activity in different tissues. “Selective” does not mean that a compound has only one effect or that safety has been established. Each candidate has its own chemistry, development history and human data.
Research status differs
Ostarine, ligandrol, andarine and other names often appear together in shops and forums, but they have not followed an identical development path. A reference should use the precise molecule and dated status rather than treating SARMs as one approved class.
Labels are not analytical results
Testing surveys of products marketed as SARMs have reported mismatches between labels and measured contents. That makes product identity a separate question from any discussion of the named compound’s published research.