You can create diverse dyes, Sloughing Fluid, potions, and elixirs with the help of different ingredients, but many of them need Water-filled Glass Flasks. If you need these flasks but don't have any resources to craft them, there is an alternative to some items that have a Water-filled Glass Flask on their recipe. Exploring the map allows you to loot chests and NPC corpses, increasing the chances of obtaining several dyes and even a few elixirs or potions at times. However, you can only obtain certain types of potions exclusively through crafting, so it's better to invest time in getting Water-filled Glass Flasks. The process of crafting items has always been the most reliable way of obtaining things in Conan Exiles.