none, don't waste your money on any of those crap products bro. i'd recommend something else but i don't know what your looking for as all three of the aforementioned supps are different. sarm-x is supposed to be sarm like (yea right), methyl 1-d is a prohormone, and endothil is supposed to help speed up recovery time somehow i believe; so what exactly are you looking for, a PH/PS type or something non-hormonal? plus it would help alot to know your stats