that is a good question - i'm not sure, but i will say that for reasons i cannot explain (sorry, i'm really no help) i like devacurl better than devacare.

i bought devacare by accident the first time i tried OneC and wasn't a huge fan, but then i gave the devacurl OneC a shot and it is my primary product now.
2b (a fine 'n porous wavy)...and finally growing out :-)

Wash: Deva Low-poo
Condish and leave in: OneC or Suave Coconut

Styler: Angell or the Deva foam, sometimes KKKC

Etc: Set It Free as a refresher

Protien: Looking for one

I love hairspray...don't judge