Occlusive Patch Test

The occlusive patch test is a skin patch test used to identify contact allergies. The test consists of applying a small amount of the suspected allergen to the skin and covering it with a closed patch. The patch is left on for a specified period of time (usually 48 hours) and then removed. Any resulting skin reaction is then examined and evaluated. At CD Formulation, we are committed to providing our clients with the highest quality patch testing services. Our team of experts have years of experience in performing patch testing and are dedicated to providing accurate and reliable results. We utilize state-of-the-art equipment and technology to ensure that our tests are efficient and effective. Additionally, we offer customized occlusive patch test solutions to meet the specific needs of our clients, providing them with a personalized and customized approach that meets their testing requirements.

Features of the Occlusive Patch Test

The occlusive patch test is a highly specific and sensitive diagnostic tool for identifying contact allergies. It can be used to detect delayed hypersensitivity reactions, which may occur hours or even days after exposure to an allergen. The patch test is used to diagnose contact dermatitis, a common skin condition that occurs when the skin comes into contact with an allergen or irritant.

Occlusive Patch Test Services

At CD Formulation, we offer a comprehensive range of patch testing services. Our team of experienced professionals utilize state-of-the-art equipment and technology to perform accurate, reliable, and efficient patch testing. We offer customized patch testing solutions to meet the specific needs of our clients.

• Test Procedure

Select qualified patch test equipment, use occlusive patch test method, place the subject in the small chamber of the patch tester, apply hypoallergenic tape on the back of the subject, press lightly with the palm of the hand to make it uniformly applied to the skin, remove the subject after 24 hours, observe the skin reaction at 0.5, 24 and 48 hours after the removal respectively, and record the results in accordance with the skin reaction classification standards in the technical specifications currently in force.

Why is the Occlusive Patch Test Required for Cosmetic Products?

Cosmetics are in direct contact with the surface of the human body during use, and if there is a problem with the product, it may cause adverse reactions including skin reactions. The patch test, a commonly used cosmetic safety test, detects this potential to ensure that cosmetics are safe to use.

Fields of Application

The occlusive patch test is used to diagnose contact allergies to a wide range of substances, including cosmetics and perfumes. It is particularly useful for diagnosing contact dermatitis, a common skin condition that affects millions of people worldwide. Contact dermatitis can cause symptoms such as redness, itching and swelling and can be a significant cause of discomfort and inconvenience for those affected.

At CD Formulation, we offer a comprehensive range of patch testing services to accurately, reliably and efficiently diagnose contact allergies. Our team of experienced professionals utilizes state-of-the-art equipment and technology to perform customized patch testing to meet the specific needs of our clients.