have you tried looking in a "Reformhaus"
other than that, you can order here Lexies Curls - Pflegeprodukte für naturlockige Haare und mehr
The shop is located in Germany, so you don't have high shipping fees. I recommend the Jessicurl Gentle Lather Shampoo. The shop does not have as many products as curlmart or britishcurlies (where I like to order), but they are expanding their range.
Wendy (Frankfurt am Main)