Original Resin is the be-all and end-all in Genshin Impact, as it basically functions like the game’s reward currency. If you defeat a boss or complete a domain, you’ll need to use resin to claim the reward. Now, you have 160 Original Resin, and this replenishes at a rate of one every eight minutes. This means it takes 21 hours and 20 minutes to replenish your resin fully.
But you can also turn Original Resin into Condensed Resin, allowing you to store it for use later. To do this, you’ll need to reach reputation rank three in Liyue, and then head to an alchemy bench. Though Condensed Resin can only be used on domains and not bosses, it does grant twice the rewards, making it ideal for farming artifacts and materials.
You can also get Fragile Resin from the battlepass and from adventure rank rewards. When you use this, it replensishes sixty resin, so it’s worth holding onto until you really need it.