A viable bone matrix containing endogenous bone forming cells (including mesenchymal stem cells, osteoprogenitor cells, and osteoblasts) as well as osteoinductive and angiogenic growth factors
BIO4 possesses all four characteristics involved in bone repair and regeneration: osteoconductive, osteoinductive, osteogenic, and angiogenic.1-3 It is an alternative to autograft that minimizes the potential for harvest site comorbidities. BIO4:
Is lot tested for the presence of VEGF (vascular endothelial growth factor)
Is lot tested for ≥ 70% cell viability post-thaw
Contains ≥ 600,000 cells/cc (endogenous bone forming cells including mesenchymal stem cells)
Is ready to use out of the package; no decanting is required, and thaws in 15 minutes
Has differentiated handling compared to competition 
Is non-immunogenic 
Is available in 1, 2.5, 5 and 10cc sizes  
BIO4 is manufactured by Osiris Therapeutics, Inc.  
References:
BIBI4-WB-3_14832