Our horse serum is collected from pathogen-free, healthy horse herds. All serums are 0.2uM filtered to guarantee no microbial growth and low endotoxin levels. Horse serum contains high amounts of macromolecules, growth factors, hormones, attachment enzymes, and supplements to promote healthy cell growth. Horse serum can be used to supplement basal cell growth for cell lines and primary cells. Other uses include blocking buffer for immuno-assays such as immunohistochemistry, immunofluorescence, and immunoblotting. Heat-inactivated serum can be made upon request.