best peptide for joints?

[sam salters]

well I do MMA, brazilian jiu-jitsu, judo, boxing, kickboxing, etc... my joints are always aching in pain and are always getting hurt or strained from all of the above. anyways, what peptide do yall think would be the best to strengthen my joints with, HGH is out of the picture. I'm in college and there is no way I can afford something that expensive


thanks,
sam