Greetings!

Put simply, synthesis kits are items meant for increasing your synthesis skills. If you have a synthesis kit on hand along with a crystal, you’ll be able to synthesize the item attributed to the kit.

The kits can be purchased from each guild’s shop (don’t worry, they cannot be sold out and the price will not fluctuate), and there are different kits for each level range.

By using a synthesis kit, you can increase your synthesis skill without worrying about whether the materials you need have been sold out. However, the kits do cost gil, and you won’t be able to produce high-quality items. Also, if you fail the synthesis the kit will be lost.

These synthesis kits are being introduced to increase your options when leveling your synthesis skills, and we will be implementing kits up to level 50 for each synthesis skill in the June version update.