Tresan is a natural hair care line, which is imported from Germany by Fulser Ecza ve Kozmetik San. Tic. Ltd. Şti since 1998. The line is based on natural ingredients (stinging nettle, rosemary, chamomile, birch, valerian, hops, lemon balm, etc.). It is a series that aims to protect the health of the hair. The line has shampoos, hair tonic and a natural hair gel.