Sample material for retests must be the same material originally submitted and retained by the lab. Material is retained for up to 30 days from receipt of the sample. Retests will incur a charge if the results come back relatively the same (within +/- 10%) of original result values.
In order to initiate a retest, you must contact Client Care at Care@SDPharmlabs.com to notify us of the request in writing. New sample material submitted will not be considered a retest, but a new test since the material was not obtained from the original material submitted to the lab.