I ran into this problem just recently in fact. I was running a cycle and happened to get concrete poisoning while on, I soaked up a mixture of concrete and water in my legs and wrists from being down in it, it really messed my joints up and after one leg day I did all kinds of damage to my tendons, I could barely walk. So I did some research and from what I've read deca is know for its ability to lubricate joints and for collagen synthesis, also eq and a few other compounds. I went with deca since I already had some on hand at 250mg per week it has helped tremendously. I can finally workout calves now and hopefully in another month or so I'll be back to doing legs!! Hope this helps you my friend