Inspired by Natural Earth Rock formations Scentcerae® Hair Rocks are zero waste shampoo bars molded into rocks. These plant based natural shampoo and conditioner rocks or better known as a solid shampoo are plastic free~sustainable~bio-degradable~sulfate free~paraben free~gluten free~pH balanced~travel friendly~cruelty free~phosphate free~non GMO~vegan~CG approved and 100% handmade.