Before applying the mask or during the process of applying the mask, use a small test paper to test the sensitivity of the skin in an inconspicuous place according to the instructions. For dry or sensitive skin, apply moisturizer for 30 minutes before using the anti-wrinkle patch and allow it to absorb before using. Note: All first-time users: Test allergies by sticking a small strip on the back of the hand to reduce adhesion. And put it on for 20 minutes. If there is no redness or swelling, you can start using the face sticker, which can be peeled off after 3 hours. It needs to be unlocked slowly when removing it. Everyone’s skin is different. It is normal if the redness disappears after 2 minutes.