COVID-19 Antibody (IgG) Serology Test - Now Available - Buy Online and Get Tested!


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Pharmacogenomic Test for Drugs Related to Skin Care

This PGx test uses a simple cheek swab to test a combination of genes related to the metabolism of drugs used in the treatment of skin and dermatology related problems.

If you are about to use Aczone - Dapsone or have been using it with no noticeable effect, or experiencing redness or bluish skin, you should get tested. Individuals with alterations in the CYB5R3 gene can experience cyanosis (blue skin disorder) after using Aczone. Individuals with G6PD enzyme deficiency are more prone to hemolysis. You can Oder G6PD test separately.

If you are currently taking one of the following drugs, FDA recommends getting tested to determine if you have a gene mutation that could render a drug ineffective, cause unwanted side effects or result into a life-threatening event. Based on this information, your healthcare provider can suggest a different drug that can be safer and more effective. 

Private Pay



Buying this kit online is easy. We'll mail the kit to your home address with complete instructions immediately after the purchase. Once we receive your cheek swab, we'll sent the test results to your email ID in a password protected file within 5 business days.



Paid by Insurance:



PGx Tests are covered (once in a lifetime) by all major insurances including Medicare and Medicaid (if ordered by your provider). If you are currently taking one of these medications and have not performed a PGx test before, ask your healthcare provider is this test is right for you? You can download an order form here and take it to your provider. After filling it up completely, your healthcare provider's office will need to fax it to TopBlood at (512) 686-8972. A patient consent form that can be downloaded here is also required. The consent form can be separately emailed to us at Once we receive the documents, we'll mail you the kit to your home address for sample collection. Once we receive your cheek swab, we'll fax the test results to your healthcare provider within 5 business days.








Skin Cancer



Plaque Psoriasis

IL12A, IL12B, IL23A



or further understanding, please refer to the United States FDA recommendations on Pharmacogenomic Biomarkers in Drug Labeling.