Hydrocolloid material is designed to be resistant to rashes, and there have been very few reports of rashes in the manufacturer's tests and in sales of other products. (Tested to meet requirements set by ISO, etc.)
However, as mentioned above, there is no guarantee that you will not have a 100% allergic reaction, so if you are purchasing in bulk for the first time, we recommend that you first purchase one box to check whether it is suitable for your skin.
* When applying the tape to your skin, be careful not to pull it too tightly as this can also cause a rash.