Has anyone tried the KCCC or the Curl junkie products?

Im trying to find a product(s) that make my curls "pop" (like have a defined curl) and im having difficulty. I sorta have a problem in trusting curl definers because im afraid they may alter my natural curl pattern. Yet I want to get rid of my frizz and dryness and get my curls defined. So im willing to try, but I need a little push before trying the product(s). Can any of you give me your response on the hair products? Any other good products would help as well.