Curls are not popping, and shrinkage

My curls are not popping like they use to. I  deep condition weekly and  do a protein treatment every 3 weeks. Is there anything I can do or any products I can try that will bring my curls back?

2 Answers

What do you mean by "popping"? Are they dry, dead,flat, not shiny, not curling anymore....I need a photo. 
I'm the girl on the right