Different samples have different expiration dates. In general, stool and blood (from blood draw) have shorter viability, and we would suggest that you collect those later than some other samples such as urine and Dried Blood Spot (DBS).

Please see list below for guidance on sample viability:

  • Hair – No expiration date
  • Buccal Swab for DNA Methylation – 2 months
  • Saliva for Hormones Test – 2 months (frozen)
  • Urine* – 30 days (frozen)
  • Dried Blood Spot (DBS) – 21 days
  • Stool – 5 days after day 2 collection
  • Blood Draw (all types) – Ship immediately on the same day

*Urine – Porphyrins Test is viable for 14 days (frozen)

MosaicDX offers pediatric collection bags with adhesive tape for pediatric patients who have not been toilet trained. These bags can be used to collect urine from infants or young children. To request pediatric collection bags, please contact our Customer Service team