I've been using the foot pads every night (on the feet) for the last month know & the smell & colour have definitely changed for the better!
As regards to putting them on the hips, that’s not something I've done myself but during my research into foot pads I read a lot of testimonials some of which attested to putting them on the hips & other areas to relieve arthritis. It was my impression from these testimonials that the 'required result' was achieved fairly quickly!!
Why not reasure yourself & do a web search from google/yahoo etc. Just search for 'detox foot pad testimonials'!