Description

Reliable organoid banking can be difficult because organoids are multicellular three-dimensional structures rather than uniform single-cell suspensions. Inadequate freezing conditions may lead to cryoinjury, structural disruption, delayed post-thaw recovery, or reduced expansion after organoids are returned to culture. These variables can affect experimental scheduling, preservation of valuable organoid lines, and reproducibility between studies.

XR Protein-Free Cryopreservation for Organoids is a ready-to-use organoid cryopreservation medium developed for the freezing and recovery of human and mouse organoids. The formulation supplies cryoprotective components and nutrients intended to reduce stress during freezing, cryogenic storage, and thawing while supporting recovery of organoid morphology and continued culture after thawing.

This protein-free organoid freezing medium contains 10% DMSO and is manufactured using cell culture-grade, pharmacopeial components. It contains no added human- or animal-derived ingredients and no protein components, helping researchers reduce exposure to undefined xenogeneic materials during organoid banking workflows.

With low endotoxin specifications, sterile filtration, and compatibility with controlled-rate freezing workflows, the medium is suitable for research laboratories establishing organoid cryobanks, preserving experimental organoid batches, or recovering organoids for subsequent expansion and downstream research.

Specifications

Product Name	XR Protein-Free Cryopreservation for Organoids
Product Type	Protein-free organoid cryopreservation medium
Reference	XROrgCRYO-0-100
Format	Ready-to-use freezing medium
DMSO Content	10% (v/v)
Protein Components	No added protein components
Animal-Derived Components	Not added
Compatible Organoids	Human and mouse organoids
Endotoxin	≤0.1 EU/mL
Filtration	<0.2 μm
Bacteria Detection	Not detected
Fungi Detection	Not detected
Product Storage	2–8°C
Shelf Life	12 months
Grade	For research use only

Features

Specialized organoid cryopreservation medium for human and mouse organoid freezing workflows
Protein-free formulation with no added human- or animal-derived components
Contains 10% (v/v) DMSO to provide cryoprotective support during freezing
Designed to reduce freeze-thaw stress and support post-thaw organoid recovery
Suitable for short-term storage at −80°C followed by transfer to liquid nitrogen for long-term cryostorage
Supports preservation of organoid morphology and continued expansion after recovery
Ready-to-use format simplifies routine organoid banking and cryopreservation workflows
Manufactured using cell culture-grade, pharmacopeial components
Low-endotoxin formulation with an endotoxin specification of ≤0.1 EU/mL
Filtered through a <0.2 μm filtration process

Performance Data

Liver Organoid Recovery Following Cryopreservation

Liver organoids were evaluated after freezing and thawing to observe post-thaw morphology and subsequent culture recovery. Representative microscopy images were collected immediately after recovery, after 24 hours, after 72 hours, and 72 hours following passage.

Liver organoid post-thaw recovery at 0 24 and 72 hours and morphology 72 hours after passage

Representative liver organoid morphology immediately after thawing, during 72-hour recovery, and following passage.

Under the tested conditions, organoid viability after thawing was maintained above 80%. The recovered organoids progressively regained typical morphology during culture and could be used for downstream experiments after approximately one to two passages.

Performance note: Recovery efficiency may vary with organoid type, passage history, fragment size, matrix removal, freezing density, cooling rate, storage conditions, and thawing technique. Each laboratory should optimize the workflow for its specific organoid model.

Applications

XR Protein-Free Cryopreservation for Organoids is intended for research workflows requiring organized storage, recovery, and continued culture of human or mouse organoids. The animal component-free and protein-free formulation is particularly useful where researchers need to reduce exposure to undefined biological materials during organoid banking.

Organoid cryopreservation: Freezing cultured organoids for later recovery, expansion, characterization, or experimental use
Organoid banking and biobanking: Establishing working or research organoid banks to preserve valuable organoid lines and reduce repeated tissue processing
Human organoid cryopreservation: Preserving established human organoid cultures for scheduled experiments and long-term research storage
Mouse organoid cryopreservation: Banking mouse-derived organoids used in developmental biology, disease modeling, or compound-response research
Liver organoid cryopreservation: Freezing and recovering liver organoids while supporting post-thaw morphology and continued expansion
Intestinal and colon organoid banking: Preservation of gastrointestinal organoid cultures after validation of an appropriate fragment size and recovery workflow
Gastric, pancreatic, lung, and kidney organoid research: Cryostorage of organoid models after application-specific workflow optimization
3D organoid culture workflows: Coordinating organoid production, cryogenic storage, and recovery across multi-stage experimental projects
Disease-model research: Maintaining cryopreserved organoid batches for repeat testing, method validation, and comparative studies
Compound screening studies: Recovering banked organoids to support experiments requiring comparable starting material across multiple runs
Organoid quality-control workflows: Preserving reference or backup cultures for morphology, growth, viability, and marker-analysis studies
Long-term organoid storage: Controlled-rate freezing followed by transfer to liquid nitrogen for extended cryogenic preservation

Recommended Cryopreservation Workflow

1. Recover Organoids from the Culture Matrix

At the end of the culture period, mechanically detach the matrix droplets from the culture plate and transfer them to a centrifuge tube. Pipette repeatedly to help separate the organoids from the matrix.

2. Pellet the Organoids

Centrifuge at 2500 rpm for 3–4 minutes, then carefully remove the supernatant and residual matrix without disturbing the organoid pellet.

3. Resuspend in Cryopreservation Medium

Slowly add the organoid freezing medium and gently resuspend the organoid pellet. Avoid excessive pipetting that may cause unwanted mechanical damage. The supplied protocol uses organoids collected from approximately two wells of a 24-well plate for one cryovial as a general reference.

4. Perform Controlled-Rate Freezing

Place the cryovials in a controlled-rate freezing container and transfer them to a −80°C freezer. Storage at −80°C is intended for short-term preservation. For long-term organoid storage, transfer the cryovials to liquid nitrogen after approximately 12 hours at −80°C.

5. Thaw and Recover the Organoids

Rapidly thaw the vial using a 37°C water bath or a suitable cell-thawing device. Transfer the organoids and freezing medium to a centrifuge tube and add at least three volumes of organoid culture medium.

6. Remove the Cryopreservation Medium

Centrifuge to remove the DMSO-containing freezing medium. Resuspend the recovered organoids in an appropriate volume of extracellular matrix according to organoid number and the laboratory's validated culture method.

7. Resume Organoid Culture

For a 24-well plate workflow, the supplied protocol uses approximately 50 μL of matrix per well. Allow the matrix to solidify at 37°C for approximately 20 minutes, then add the appropriate organoid culture medium and continue incubation.

Protocol note: The centrifugation settings, organoid density, matrix volume, freezing time, and recovery conditions listed above are starting references from the supplied product information. Optimize these parameters for each organoid source and culture platform.

Why Use a Protein-Free Organoid Freezing Medium?

Traditional cell freezing media may contain serum, albumin, or other biologically derived components that introduce undefined variables into sensitive organoid workflows. These components can vary between lots and may be undesirable for laboratories seeking a more controlled organoid cryopreservation process.

XR Protein-Free Cryopreservation for Organoids provides a protein-free and animal component-free alternative for organoid banking. The formulation helps reduce exposure to xenogeneic biological materials while retaining 10% DMSO for cryoprotection during freezing.

The ready-to-use format also reduces the need to prepare freezing mixtures immediately before use, helping laboratories standardize organoid freezing procedures across operators, experimental batches, and organoid research projects.

FAQ

What is XR Protein-Free Cryopreservation for Organoids used for?

It is a ready-to-use organoid cryopreservation medium designed for freezing, cryogenic storage, thawing, and recovery of human and mouse organoids. It can be used in routine organoid banking and long-term organoid storage workflows.

Is this an organoid-specific freezing medium?

Yes. The formulation is designed specifically for organoid cryopreservation rather than general single-cell freezing. It provides cryoprotective components and nutrients intended to help reduce freeze-thaw stress and support recovery of three-dimensional organoid cultures.

Does the organoid cryopreservation medium contain protein?

No added protein components are included. The product is designed as a protein-free organoid freezing medium for research workflows where reducing exposure to undefined biological materials is important.

Does this freezing medium contain animal-derived components?

No animal-derived ingredients are added to the formulation. This makes it suitable for animal component-free organoid cryopreservation workflows. It is supplied for research use only.

Is this product serum-free?

Yes. The formulation contains no added serum or protein components. It can be used as a serum-free and protein-free cryopreservation medium for compatible organoid research workflows.

How much DMSO is present in the organoid freezing medium?

The medium contains 10% (v/v) DMSO. Because DMSO exposure can affect cells after thawing, the freezing medium should be diluted promptly with organoid culture medium and removed by centrifugation during recovery.

What types of organoids can be frozen with this medium?

The product is intended for human and mouse organoids. The supplied performance data use liver organoids. Other organoid models should be evaluated and optimized for fragment size, freezing density, matrix removal, recovery medium, and post-thaw culture conditions.

Can this medium be used for human organoid cryopreservation?

Yes. Human organoids are included among the intended sample types. Researchers should validate freezing density and recovery conditions for the specific tissue source and organoid culture system.

Can this medium be used for mouse organoid cryopreservation?

Yes. The product is suitable for mouse organoid freezing and recovery workflows after application-specific optimization.

Can organoids be stored at −80°C?

According to the supplied workflow, −80°C is suitable for short-term storage and as the initial controlled-freezing step. For long-term cryostorage, the vials should be transferred to liquid nitrogen after approximately 12 hours at −80°C.

Is controlled-rate freezing recommended?

Yes. A controlled-rate freezing container is recommended to provide gradual cooling before transfer to long-term liquid nitrogen storage. Consistent cooling can help reduce variability during organoid cryopreservation.

How should frozen organoids be thawed?

Frozen organoids may be rapidly thawed in a 37°C water bath or with a compatible cell-thawing device. After thawing, transfer the sample to a centrifuge tube, add at least three volumes of organoid culture medium, and remove the DMSO-containing freezing medium by centrifugation.

Should the cryopreservation medium be removed after thawing?

Yes. After thawing, dilute the sample with at least three volumes of organoid culture medium and centrifuge to remove the cryopreservation medium before resuspending the organoids in matrix.

What post-thaw viability was observed in the supplied evaluation?

Under the tested conditions, organoid viability after thawing was maintained above 80%. Actual recovery may vary depending on the organoid model, freezing density, passage status, handling technique, storage duration, and thawing procedure.

How quickly do organoids recover after thawing?

The supplied liver organoid data show progressive morphological recovery during the first 24–72 hours after thawing. The product information indicates that organoids can typically proceed to downstream experiments after approximately one to two passages under the tested conditions.

How should the unopened product be stored?

The organoid cryopreservation medium should be stored at 2–8°C. The stated shelf life is 12 months when stored under the recommended conditions.

What is the endotoxin specification?

The endotoxin specification is ≤0.1 EU/mL. The medium is also filtered through a <0.2 μm filtration process, with bacteria and fungi reported as not detected.

Is this product intended for clinical use?

No. This product is intended for research use only and is not intended for diagnostic, therapeutic, or clinical use.

For Research Use Only. Not intended for diagnostic, therapeutic, or clinical applications.

XR OrgCryo - Protein-Free Organoid Cryopreservation Solution