PharmLabs Sample Retest Policy 230907:

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 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.


PharmLabs has been a pioneer in testing since 2011 for cannabinoid, psychedelic and select nutraceutical testing.  We ensure product quality, safety, and compliance for both regulated and non-regulated industries.  Our white glove service guarantees that you will always be able to contact live assistance before, during and after the testing process.  Our extremely competitive pricing is personalized for your business to make sure you keep your operating costs low, but also have the opportunity to grow without compromising your ability to test your products for quality and safety.  Fast turnaround times, including same-day testing when available, means you get your results, and can conduct business in a timely manner.  Accuracy is everything to us, and we work diligently to continuously verify all processes and results before they ever reach you.  If ever there are concerns with your results, our Client Care Team is here to help you address and find resolution in a timely manner. Experience excellence with us at PharmLabs!