Chitin or Keratin
Because of the current crafting system, some recipes can use either Chitin or Keratin. This means that any crafted item that states "Chitin/Keratin" as a material will combine both as a single material. For example, if an item requires 30 "Chitin/Keratin", then 10 Chitin & 20 Keratin, or any other combination adding up to 30 will allow the item to be crafted. This page allows info-box recipes to have a valid link under "Chitin or Keratin"
Items crafted with Chitin or Keratin: