I've used the Curl Amplifyer before. However, I stopped using it once I gave up sulfates. Because it has dimethicone in it, it built up in my hair (I didn't pay attention to the ingredients until a week of use and my hair was nasty). However, if you plan to continue using shampoo with SLS or ALS (more gentle shampoos didn't remove the stuff for me), then it's certainly worth a try. I liked what it did to my hair - good hold and curl formation. I wish I hadn't tossed my bottle of it . . . I could have sent it your way.
embracing my inner curl since late Nov 2006
2b/3a (I think?)
color-treated red/brown, medium-textured hair
PJ, currently using Suave citrus smoothie, B2B pom cond, GF C&S leave-in, AG re:coil, LOOB, HE SMU, Jessicurl HCC, CC, AIS