GelXA SKIN is designed for fabricating skin and skin-related constructs. It incorporates fibrinogen to mimic the native wound-healing environment found in skin tissue. Fibrinogen converts to fibrin during wound healing, and promotes clotting and tissue repair through polymerization. GelXA SKIN comes with our thrombin-containing crosslinking solution to develop a compound network with unparalleled stability. After crosslinking, GelXA SKIN’s in situ fibrin and fibrinogen enables a physiologically relevant wound-healing environment. GelXA SKIN is optimized to print skin models for research and testing.


Below you can download a protocol for Bioprinting CELLINK SKIN as well as printing a Skin Tissue Model with the G-code found on Bioverse.



Bioink is available in 3 mL cartridges.
Includes one bottle of crosslinking agent and one vial of thrombin.
Sterile production and packaging.
Two-month shelf life.
For research use only. Not for human use.

Product number: IK3X21110301 (1 x 3 mL)
Product number: IK3X21110303 (3 x 3 mL)

We began offering a new and improved GelXA formulation in September 2019. The new blend enables more efficient photocrosslinking and a slightly lower stiffness after ionic crosslinking. If you would like to order the previous version, our team can prepare it upon request.


The bioink has the following quality criteria:

Appearance Semi-translucent gel
Sterility Sterile
Endotoxin level <30 EU/mL
pH 6.5-7.4
GelMA degree of methacrylation 45-55%
Gelation temperature 23-27ºC