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Geltrex Flex

Improved flexibility and supply reliability for consistent 2D and 3D cell culture workflows.

How Can Gibco™ Geltrex™ Flex Help You?

Trusted Geltrex Performance

Delivers an equivalent performance to legacy Geltrex™, supporting established 2D and 3D cell culture protocols.

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Improved Flexibility for Experimental Planning

Available in multiple vial sizes to help buy only what you need and reduce aliquoting and freeze–thaw cycles.

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Strengthened Global Supply Reliability

Built on an improved global supply network to help ensure consistent availability for ongoing and long-term studies.

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One Solution Across Key Cell Culture Workflows

Geltrex Flex Basement Membrane Matrix

Geltrex™ Flex Basement Membrane Matrix delivers the same trusted performance as legacy Geltrex™, with improved flexibility and strengthened supply reliability to support consistent 2D and 3D cell culture workflows. Designed for continuity in established protocols, it helps ensure reproducible results across ongoing and long-term studies.

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Three Application-Specific Formats

Available in formats designed for general cell culture, stem cell culture, and organoid cell culture, including an organoid-qualified option.

Same Trusted Geltrex™ Performance

Delivers the same Geltrex™ performance, validated through side-by-side testing across stem cell and organoid culture applications.

Reduced Growth Factor, Phenol Red–Free

Reduced growth factor, phenol red–free basement membrane matrix to support sensitive cell culture workflows.

Flexible Vial Sizes From the Same Lot

Available in 1 mL, 5 mL, and 10 mL vial sizes to help you buy only what you need and reduce aliquoting and freeze–thaw cycles.

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Related Resources

Geltrex™ Flex Flyer

Volumes you want. Quality you need.

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Optimized Primary Cells, Media, and Matrices

Perform your research in tissue-relevant systems backed by Gibco quality products.

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Related Documentation

Geltrex™ Flex LDEV-Free Reduced Growth Factor Basement Membrane Matrix User Guide

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Geltrex™ Flex LDEV-Free, Organoid Qualified, Reduced Growth Factor Basement Membrane Matrix User Guide

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Geltrex™ Flex LDEV-Free, hESC Qualified, Reduced Growth Factor Basement Membrane Matrix User Guide

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Frequently Asked Questions

The composition of Geltrex Flex is a proprietary formulation of laminin, collagen IV, entactin, and heparan sulfate proteoglycans . The composition of Geltrex is also proprietary and has similar key proteins in its formula.

The recommended version of Geltrex Flex is listed in the table below depending on the type of Geltrex you utilized. Geltrex Flex is also offered in 10mL sizes as well as in an organoid qualified versionpreviously not available. Data comparing Geltrex to Geltrex Flex can be explored here.

All our matrix products are phenol red-free to help ensure precise color detection and eliminate estrogenic effects in your research. Phenol red can be added for customized needs, helping provide you with versatile and reliable cell culture solutions.​