Not necessarily a supplement, but still somewhat vital to certain workouts.
I am looking for new knee sleeves for lifting, anyone have any recommendations?
SBDs are great. Mark Bell's STrong sleeves are another high quality. I have worn both and prefer SBD due to the stitching which they claim aids to torque the knees outward. While I can't say they definitely help with that, they seem to fit me a lot better.