How do skin care products measure allergies? How much do you know?

What are the test methods for skin care products?

Apply behind the ear

The skin behind the ear and the skin on the face are especially similar, and the skin behind the ear is generally sensitive, and if the skin care product used is not suitable, it will react in time. Generally speaking, the basic skin care products absorb faster. When you purchase, you can let the shopping guide help to test the skin on the back of the ear, and then walk around the mall for half an hour to an hour or so. If the skin does not have allergies, then You can buy this skin care product when you go home. However, the accuracy of this test method is not high, and it is suitable for detecting whether skin care products are allergic when purchased outside. Plus many people nowadays like to buy products online!

Arm test

The test of the arm is troublesome but also relatively accurate. Generally, we can use the skin care products that are allergic to be tested. First soak the clean gauze with distilled water or normal saline, screw it to a half-dry and fold it into 4 layers of about one square centimeter. Apply the skin care product to be tested to one side of the gauze and cover the side to the inside of the forearm. Or cover the back of the hand, use about 1.5 square centimeter of air-impermeable cellophane or plastic film, and seal it with tape. If the skin is uncomfortable after 24-48 hours, it means that allergic to the skin care product should be removed and cleaned with water. Wash clean, if there are no symptoms, it means not allergic.

After reading the article, do you know how to test skin allergy? No matter where you buy the skin care products, you must first test it. Otherwise, it will cause a lot of allergies. After all, it is on the face. As long as there is a little problem, it will affect you! The age of looking at the face is estimated to be like this! Xiaobian here reminds everyone to pay attention when buying skin care products, be careful to buy fakes!