GeneFix Saliva DNA Collectors

  • Cost-saving: list price as low as €11.60 each
  • DNA stable for >5 years at RT
  • High DNA yield and purity
  • Kits for 1 ml and 2 ml saliva
  • Easy to use, no spilling or leakage
  • Mailable and automatable tube format

Collect and stabilize saliva DNA

GeneFix is a new easy to use and economical DNA saliva collection device designed specifically to store and stabilise DNA from 2 ml or 1 ml saliva samples. The collection tube is pre-filled with a fully tested and chemically optimised stabilisation buffer.


We have chosen Isohelix GeneFix Saliva kits because the quality is comparable to our previous saliva collection method. In addition the Isohelix kit is both easy-to-use and user-friendly, the price/quality ratio is good and the kits can be delivered quickly thanks to the distributor based in The Netherlands.

Department of Human Genetics, Radboudumc Nijmegen

High DNA yield & purity

DNA can be extracted with high yield and purity from GeneFix-stabilized saliva samples using the rapid GeneFix Saliva prep 2 Kit.

The isolated DNA is of high molecular weight and high purity. The yields indicated below for 2 ml saliva samples accurately represent DNA, as virtually no RNA contamination is present.

Easy to use without spillage, automation-compatible

The simple screw-on funnel enables the saliva sample to be delivered directly and quickly into the buffer. The unique funnel design prevents spillages and flow back even when accidentally knocked over.

Barcode labels are available for sample identification. For automated isolation of DNA from saliva samples, including automated tube decapping, we recommend the 1D and 2D barcoded FluidX format.


Saliva DNA collected and isolated with the GeneFiX system gives excellent results in many downstream applications including Next Generation Sequencing, QPCR, Multiplex PCR and Methylation analysis. Application areas include Clinical Diagnostics, Biobanking, Population Studies, Paternity Testing, PharmacoGenomics, HLA Testing, Forensics, and many more.

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Ordering information

Westburg offers this product in The Netherlands, Belgium, Luxembourg,
If you are not located in these countries please visit the Isohelix website to find your local distributor.
Cat no. Description
IS GFX-01/02 GeneFiX Saliva Collectors 1 ml (2)
IS GFX-01/12 GeneFiX Saliva Collectors 1 ml (12)
IS GFX-01/50 GeneFiX Saliva Collectors 1 ml (50)
IS GFX-02/02 GeneFix Saliva Collectors 2 ml (2)
IS GFX-02/12 GeneFix Saliva Collectors 2 ml (12)
IS GFX-02/50 GeneFix Saliva Collectors 2 ml (50)
IS GFXA-01/02 GeneFiX Saliva Collectors 1 ml + Swabs (2)
IS GFXA-01/12 GeneFiX Saliva Collectors 1 ml + Swabs (12)
IS GFXA-01/50 GeneFiX Saliva Collectors 1 ml + Swabs (50)