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Freezing Medium - TYB with Glycerol & Gentamicin

In stock
Catalog ID

Sperm cryopreservation medium containing TEST-yolk buffer to attain high postthaw sperm recovery.

Size Stock SKU Unit Price Qty
100 mL In Stock 90128-100ML
20 x 5 mL In Stock 90128-20X5ML
This device is restricted to be sold to and used by licensed healthcare practitioners for assisted reproduction procedures in a clinical laboratory setting.

Freezing Medium TYB contains TEST-yolk buffer (TYB) to recover more motile sperm post-thaw than glycerol-only media (Hallak 2000, Nallella 2004). TEST-yolk buffer is a semen extender and cryobuffer that can be paired with glycerol to achieve high sperm motility and viability. The egg yolk is from USDA certified virus-free flocks and washed from the sperm after cryopreservation. Freezing Medium TYB is also the only CE-marked and FDA-approved sperm freezing media containing TYB and glycerol. As one of the most referenced sperm cryopreservation media worldwide, Freezing Medium TYB has established itself as the standard for performance.

  • 2-year shelf life
  • Contains:
    - 20% egg yolk from USDA certified SPF (Virus Free) laying flocks, heat inactivated at 56°C for 30 minutes
    - 12% glycerol
    - 10µg/mL gentamicin sulfate
  • CE Marked

Quality Control Testing:

  • Endotoxin by Limulus Amebocyte Lysate (LAL)
  • Sperm Cryosurvival assay
  • Sterility by the current USP, CFR and Ph. Eur. Sterility Test
  • pH
  • Osmolality


Store Below -10°C
Shelf Life
2 years from date of manufacture
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