LONG_R3_EGF.gifRepligen cell culture supplements provide the benefits of serum supplementation while maintaining an animal-free process.

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LONG®R3 IGF-I Cell Culture Supplement

LONG®R3 IGF-I (LONG R3) is a recombinant analog of human insulin-like growth factor-I (IGF-I) that has been specifically engineered for the enhancement of cell culture performance.  It is 200 times more potent and two times more stable in cell culture than insulin.


SAFC® is the exclusive worldwide distributor of LONG®R3 IGF-I for industrial cell culture applications.

Long®r3 igf-i

LONG® EGF Cell Culture Supplement

LONG EGF Cell Culture Supplement

LONG® EGF is a recombinant analog of human epidermal growth factor (EGF) used in regulatory approved cell-based therapies. Developed as a supplement for use in therapeutic cell culture applications as a like-for-like replacement for native EGF or recombinant human EGF (hEGF). 


SAFC® is a registered trademark of Merck KGaA.

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