Huanren Lab

 HRIPT RIPT Test

Multiple repeated sealing skin patch tests

Cosmetics are in direct contact with the human surface during use. If there is a problem with the product, it may cause adverse skin reactions. As a commonly used cosmetic safety test, patch test can detect this potential possibility to ensure the safety of cosmetic use.

Common types of skin patch tests include closed patch tests, repeat open-type tests, and repeated damage patch tests.

Generally speaking, skin-enclosed patch tests are commonly used for cosmetics.

In special cases, such as freckle removal cosmetics and powdery (such as powder, foundation) sunscreen cosmetics, when irritating results or difficult to judge the results of human skin patch tests, the skin repetitive open-type application test should be added. The skin repetitive open-type test is also suitable for leaching products, hair dyes, hair removal and other products.

Amazon requires this test to be done for makeup and beauty products

To ensure that there is no potential irritation or allergies after using the product or raw materials. Amazon requires cosmetics, beauty products, nail glue, etc. to do HRIPT/RIPT repeated multiple closed skin patch test reports.

Stores without relevant test reports may face penalties such as product removal and payment withheld!

What is HRIPT/RIPT?

RIPT: Repeated Insult Patch Test (RIPT) is the most rigorous study that will not cause potential irritation or allergies after using products or raw materials. Nine groups of inducible patches are used, followed by a set of excitation tests after a period of rest.

HRIPT: Human Repeated Insult Patch Test (HRIPT)

Test process

After the sample arrives in the laboratory, the test substance will be given an independent laboratory test number, and will be recorded and verified by the experiment log and the batch number, sample instruction manual, sponsor, delivery date and test request.

Volunteer screening: According to the opinions of the R&D personnel, the tester must have no systemic disease or skin history, otherwise it will hinder the test results or increase the risk of adverse reactions in the body. If the skin color is suitable for erythema experimental observation, any skin nature and any species of people can participate, and finally screened out the study sample of 53 people.

▨The test is divided into induction period and excitation period. Through multiple repeated tests, it is finally determined whether the subject has erythema or other adverse stimulation reactions.