relaxer help needed!

I am Biracial, I have relaxed hair and typically use whatever product my current salon carries. However I find that even the most mild relaxer is still a bit too harsh for my hair and after several years of relaxing it is starting to thin a bit. My natural hair is a kinky wave, not fine but not really coarse. I used to press it, but relaxing was the best solution I could find for control. I have been trying to find some new or alternative type of relaxer product/method that is less harsh than the typical relaxer. I have heard of the new COPA system but don't know anyone who has used it, or if it would work for me. Can anyone give me some suggestions of other products I could look into, or tell me about some things you may have tried?
Thanks, Sonceree