From Amazon
Rausch Coltactile anti-dandruff shampoo (works sustainably and mild against dandruff, without silicones and parabens, vegan), pack of 1 (1 x 200 ml)
Cosmetify
Rausch Coltsfoot Anti-Dandruff Shampoo 200ml
This product is also available at 1 unverified store.