RUO. , never imply diagnostic use.

1:1 mix, 10 minutes, freeze at −80°C. Stabilises whole blood at the bedside — preserves granulocytes and immune activation state. Sold FOUR ways — pricing and full detail below.

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Product photo slot — drag and drop the Stabiliser cryotube photo here to replace it.

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Collecting & Handling

• Single mixing step (1:1 with fresh whole blood, room temp) — no PBMC isolation, no specialized on-site training or equipment needed.
• Compatible with both heparin and EDTA anticoagulants (heparin preferred if the same draw may also be used for functional/stimulation assays, since EDTA suppresses cellular responses).
• Tolerant of real-world timing variance: heparinized blood is stable up to ~24 hours at room temperature before mixing with the Stabiliser; the Stabiliser's core value is absorbing that real-world delay reliably, not instantaneous fixation.
• Available pre-filled in cryogenic tubes (hWBCS001-Txxx) for bedside/remote-site draws — standard PPE (gloves, eyewear) on an open bench is sufficient.

Storage & shipping robustness

• Validated long-term storage at −80°C — years of storage with fresh-equivalent flow cytometry data on thaw (marker intensity, SSC/granularity, and population structure all preserved).
• LN2 vapour-phase storage is compatible and has been directly recommended (liquid-phase LN2 is avoided for biosafety/regulatory reasons, not a performance limitation).
• Genuinely forgiving of cold-chain slip-ups: stable at room temperature for weeks (fine even sooner for shorter excursions), and a real-world case of a bottle sitting at 16°C for ~18 hours due to a fridge failure showed no quality impact. (−20°C is explicitly an emergency/temporary measure only, not for extended storage.)
• Sold two ways depending on logistics needs: ready-to-use single reagent (needs refrigeration for full 2-year+ shelf life), or a 2-component kit that ships and stores at room temperature and is reconstituted just before first use — useful for prolonged international transit.

Composition & practical handling

• Mostly organic compounds, not animal-derived; free of thimerosal/mercury.
• Formaldehyde content deliberately minimized — safe to use outside a fume hood under normal conditions with standard PPE.
• Bottles can be opened and reclosed repeatedly without degrading; remnants from different batches can be combined (batch-to-batch consistency is high), so large orders don't need to be split for stability reasons.

Species flexibility

• Dedicated human-optimized and murine-optimized formulations.
• Beyond the two formally validated species, customer use has shown the human version working on cynomolgus/rhesus macaque, canine, and porcine blood, and the murine version recently tested successfully in rats — not formally validated, but no chemistry-based reason it shouldn't extend broadly across mammalian blood.

System integration