
Mouth tape is an adhesive product, so comfort and skin response deserve attention. A mild adjustment period is different from significant irritation or breathing difficulty, which should not be ignored.

Any adhesive product can be uncomfortable for some skin types. If the skin becomes irritated, stop using the tape rather than repeatedly testing the same area.

Mouth taping is sometimes chosen by people who wake with a dry mouth, but dryness can have many causes. A sleep accessory should not be assumed to solve the underlying reason

If you cannot breathe comfortably through your nose, mouth tape should not be used. Nasal congestion and untreated sleep apnea are specifically listed by Shut It as reasons not to use the product.

Follow the product directions and pay attention to how your skin and breathing feel. Do not introduce several new sleep products at once if you are trying to identify what is causing irritation.
Significant breathing difficulty, swelling, severe skin reactions or persistent sleep symptoms are reasons to stop and seek appropriate professional advice.