3D-Printed Skin Models Ready for Cosmetic Nanoparticle Testing

Researchers from TU Graz and VIT have developed a lifelike, hydrogel-based skin imitation with living cells, offering a promising alternative to animal testing in the cosmetics industry.

The 3D-printed skin mimics the three-layer structure and biomechanics of human skin, closely replicating its natural properties.
Developed using hydrogels with high water content, the models support the survival, growth, and multiplication of living skin cells.
Initial tests show the models are mechanically stable, non-toxic, and ready for testing nanoparticles, such as those found in sunscreens.
The project addresses ethical concerns and regulatory restrictions on animal testing, driven by EU Directive 2010/63/EU.
Researchers are optimizing hydrogel formulations and validating the models' broader applications, including potential uses in drug testing and wound healing.

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