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If you are sending samples from outside of the United States, please add a proforma invoice with a value of $0.50, an Import Form, and a TSCA Certification. This is very important to avoid delays in getting your samples to us. Please read our international shipping instructions carefully.
We’re implementing significant upgrades to our testing methodologies within the next 6 months, enhancing the accuracy and diagnostic value of our results. While these improvements will result in a price increase, they reflect our commitment to delivering the highest quality service.**
The Fanconi Syndrome test is being replaced by a quantitative assay based on creatinines and will include a true quantitative measure of amino acids at a cost of $175 as of April 1, 2026.