As for the negative effects, it is usually not a big problem. However, everyone has a different skin type and sensitivity, so it is best to conduct a skin allergy test before use. Choose a small area of skin to try and observe whether an allergic reaction occurs within 24 hours. If there is no discomfort or allergic reaction, you can use this mask without worry.
To avoid any potential negative effects, it is recommended to use pure, natural, additive-free milk and pearl powder, and to ensure that the products used meet hygiene standards.
As for the exact preparation of the mask, a simple and easy way to make it is given here: pour an appropriate amount of pure milk into a bowl, add a small amount of pearl powder and mix well to form a paste. Then apply the mask to clean face skin, avoiding around the eyes and lips. Leave it on for 15-20 minutes and then wash it off with water.
The mask made of pure milk and pearl powder can effectively remove acne marks and generally does not have much negative effects. However, due to individual differences, it is best to conduct a skin allergy test before use and choose quality ingredients to ensure safety and effectiveness. Remember to use it consistently for better results.