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Technology

A superior technology to produce safe and efficient cell culture supplements. For years, we’ve focused on developing and supplying Human Platelet Lysate — on this page, we share what we’ve learned.

What is Human Platelet Lysate

The supplement that replaces animal serum

Human Platelet Lysate (HPL) is derived from human blood platelets and used as a cell culture supplement — the substance added to growth medium that supplies the growth factors cells need to expand outside the body. For decades, Fetal Bovine Serum (FBS) filled this role by default. ELAREM™ Human Platelet Lysate Technology was built to replace it with a human-derived, animal serum-free alternative.

In practice, this means the cell culture supplements — and any related products built on them — do not contain any animal components. That single fact removes an entire category of variability, ethical sourcing questions, and regulatory grey zones that come with animal-derived serum.

“A superior technology to produce safe & efficient cell culture supplements.”

ELAREM™ is positioned to support researchers across the entire research chain — from academic, exploratory work through pre-clinical research to GMP-compliant cellular therapy manufacturing. One technology platform, tailored supplements at every stage.

FETAL BOVINE SERUM ELAREM™ HPL ANIMAL-DERIVED LOT-TO-LOT VARIABILITY HUMAN-DERIVED ANIMAL SERUM-FREE ONE PLATFORM · EVERY STAGE ACADEMIC PRE-CLINICAL GMP MANUFACTURING
ELAREM™ Human Platelet Lysate product range
Fig. 1 — From animal serum to Human Platelet Lysate.
Mechanism of action

How growth factors do the work

When platelets are lysed, they release the growth factors stored inside them — the same signalling molecules the human body uses to drive wound healing and tissue repair. In a culture dish, those growth factors bind to receptors on the cells and trigger the pathways that drive proliferation.

The practical question for every researcher is: how much HPL, exactly? The recommended starting range is 1–10% (v/v) in the culture medium — the correct concentration depends on the cell type and experimental conditions in use, not a single fixed number.

1–10% — Recommended (v/v) starting range
Cell-type dependent — Optimal concentration variable
Validate first — Not a universal dosage claim
01Release
02Binding
03Proliferation
Researcher pipetting medium into a six-well cell culture plate
Manufacturing & origin

Traceable, from donor to vial

ELAREM™ products are manufactured from Platelet Units donated by healthy blood donors at licensed blood centres. Depending on the product, that origin is documented precisely — ELAREM™ Perform is produced from EU-origin platelet units, while ELAREM™ Perform-FD draws on US-origin material. Origin is not a footnote; it is a specification researchers actively compare across products.

Manufacturing happens in qualified Controlled Environment Rooms (CERs) and cGMP-compliant clean room areas. Multiple products are produced from large pools of Platelet Units, giving the process batch-to-batch consistency that a single-donor approach could never guarantee.

“Customers benefit from our look-back procedure enabling the tracing of every production step.”

That look-back capability means every batch can be traced backward through the entire production chain — a concrete answer to the quality and compliance questions that GMP-grade buyers ask before they ever request a quote.

  1. 01
    DonationPlatelet Units from healthy donors, licensed blood centres.
  2. 02
    PoolingLarge pools of Platelet Units for batch-to-batch consistency.
  3. 03
    ProcessingCER / cGMP-compliant clean room manufacturing.
  4. 04
    Look-back & releaseFull traceability of every production step before release.
Compared with FBS

Why researchers are switching from FBS

Fetal Bovine Serum (FBS) has been the default cell culture supplement for decades — but it comes with lot-to-lot variability, ethical sourcing concerns, and a growing list of regulatory questions in translational and clinical work. ELAREM™ was built specifically as the “simple switch” option for researchers making that move: xeno-free, animal serum-free, with the added convenience of fibrinogen-depletion for off-the-shelf use.

CriterionFetal Bovine Serum (FBS)ELAREM™ Human Platelet Lysate
Animal originBovine (animal-derived)Human-derived, animal serum-free
Xeno-free positioningNot applicableXeno-free where confirmed per product datasheet
Batch consistencyKnown lot-to-lot variabilityLarge-pool production for batch-to-batch consistency
Switch effortEstablished workflowPositioned as a “simple switch”, incl. off-the-shelf FD PLUS variants
TraceabilityPlaceholder — client to confirm typical claimsLook-back procedure across every production step
ELAREM Human Platelet Lysate bottles on a laminar flow bench during cell culture work
Fig. 4 — Clot-free handling.
Fibrinogen-depletion (FD / FD PLUS)

Clot-free, without adding anticoagulants

Untreated Human Platelet Lysate still contains fibrinogen, which can cause the medium to clot during handling — a practical nuisance that normally requires adding anticoagulants like heparin. ELAREM™’s fibrinogen-depletion technique removes that fibrinogen at the source, producing a lysate that is clot-free and anticoagulant-free, with no anticoagulant needed either during manufacturing or in the cell culture itself.

This isn’t a single feature — it spans the majority of the current portfolio. The table below shows which products carry which properties, so a researcher can quickly see what “FD” and “FD PLUS” actually change about handling.

ProductFibrinogen-depletedAnticoagulant requiredNotable process step
ELAREM™ Prime-FD PLUSYes — unique techniqueNot required—
ELAREM™ Perform-FD PLUSYesNot required—
ELAREM™ Perform-FDYesNot required (traces possible)—
ELAREM™ Ultimate-FD PLUSYesNot requiredGamma-irradiated, 38–55 kGy final step
ELAREM™ Ultimate-FDiYes, plus virus-inactivatedNot requiredFinal gamma-irradiation for clinical-grade safety
Viral reductionELAREM™

An additional safety step.

ELAREM™ Ultimate-FD PLUS · GMP Grade

38–55kGy · Gamma irradiation

The final manufacturing step.

A viral-clearance study demonstrates reduction of the tested viruses.

Not general evidence for the elimination of all viruses.

Still have questions about the science?

Our technical team can walk through your specific cell type, application and grade requirements — no sales pitch required.

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