{"id":58473,"date":"2023-07-10T05:31:59","date_gmt":"2023-07-10T05:31:59","guid":{"rendered":"https:\/\/purmabiologics.com\/blog\/?post_type=product&#038;p=58473"},"modified":"2026-08-13T13:47:17","modified_gmt":"2026-08-13T19:47:17","slug":"horse-serum-hs","status":"publish","type":"product","link":"https:\/\/purmabiologics.com\/blog\/product\/horse-serum-hs\/","title":{"rendered":"Horse Serum (HS)"},"content":{"rendered":"<h2>Background<\/h2>\n<p>Laboratories around the globe use Horse Serum (HS) to support the growth of many cell types In vitro. HS provides proper growth for human Embryo Fibroblast as well as models of hepatitis. Moreover, it performs well with U937 macrophage, human lymphocytes as well as blood cells including cord blood cells, T and B lymphocytes. We collect Horse Serum (HS) from foals less than 12 months old.<\/p>\n<h3>Horse Serum (HS) Vs. Fetal Horse Serum (FHS)<\/h3>\n<ul>\n<li>HS contains approximately twice the protein compared to fetal horse serum (FHS), among them IgGs and other antibodies.<\/li>\n<li>Contains fewer growth factors than fetal horse serum, however, is proven to be adequate for the above-mentioned cell lines.<\/li>\n<li>Importantly, it is much more cost-effective than Fetal Horse Serum (FHS).<\/li>\n<\/ul>\n<h3>Special Features<\/h3>\n<ul>\n<li>PurMa\u2122 Horse Serum (HS) has US origin.<\/li>\n<li>PurMa\u2122 Horse Serum (HS) has been triple-filtered through 0.1 \u00b5M filters.<\/li>\n<li>PurMa Biologics sterilizes HS with gamma irradiation methodology.<\/li>\n<li>PurMa Biologics performs heat-inactivation on our HS.<\/li>\n<li>Has been tested for mycoplasma as well as endotoxin (see below), see the certificate of analysis.<\/li>\n<li>Has been tested on multiple cell lines, such as Hek293, COS1, and NS1 cells.<\/li>\n<\/ul>\n<h3>Analysis<\/h3>\n<p>The Analysis performed on all PurMa\u2122 Bovine and Horse Serums: <span style=\"color: #0000ff;\"><strong><a style=\"color: #0000ff;\" href=\"https:\/\/purmabiologics.com\/blog\/wp-content\/uploads\/2023\/07\/Routin-Patalogicsl-Analysis-on-PurMa-Bovine-and-Horse-Serums.pdf\" target=\"_blank\" rel=\"noopener\">Routine Pathological Analysis on PurMa\u2122 Bovine and Horse Serums<\/a><\/strong><\/span><\/p>\n<h3>References<\/h3>\n<ol>\n<li><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/511211\/\" rel=\"nofollow noopener\" target=\"_blank\">Effect of horse serum on neural cell differentiation in tissue culture. <\/a><\/span>Fedoroff et al. In Vitro. 1979 Aug;15(8):641-8. doi: 10.1007\/BF02623400. PMID:<\/li>\n<li><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/6500611\/\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"color: #0000ff;\">Changes in serum influence the fatty acid composition of established cell lines.<\/span> <\/a>Stoll et al. In Vitro. 1984 Sep;20(9):732-8. doi: 10.1007\/BF02618879. PMID:<\/li>\n<li><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/6654379\/\" rel=\"nofollow noopener\" target=\"_blank\">Serum and growth factor requirements for proliferation of human adrenocortical cells in culture: comparison with bovine adrenocortical cells. <\/a><\/span>Hornsby et al. In Vitro. 1983 Nov;19(11):863-9. doi: 10.1007\/BF02618166. PMID:<\/li>\n<\/ol>\n<table width=\"708\">\n<tbody>\n<tr>\n<td width=\"366\"><strong>Methodology<\/strong><\/td>\n<td width=\"120\"><strong>Unit measured<\/strong><\/td>\n<td width=\"108\"><strong>Accepted level<\/strong><\/td>\n<td width=\"114\"><strong>Result<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Sterility (Current USP and EP 2.6.1 for Bacteria &amp; Fungi)<\/td>\n<td width=\"120\">NA<\/td>\n<td width=\"108\">Not Detected<\/td>\n<td width=\"114\">Not Detected<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">pH<\/td>\n<td width=\"120\">N\/A<\/td>\n<td width=\"108\">measured<\/td>\n<td width=\"114\">6.58<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Osmolality (USP 785)\u00a0\u00a0\u00a0\u00a0 mOsm\/KgH2<\/td>\n<td width=\"120\">mOsm\/KgH20<\/td>\n<td width=\"108\">280-340<\/td>\n<td width=\"114\">288<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Hemoglobin (Fleming &amp; Woolf)<\/td>\n<td width=\"120\">mg\/dL<\/td>\n<td width=\"108\">&lt;25<\/td>\n<td width=\"114\">12.9<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Endotoxin (USP 85)<\/td>\n<td width=\"120\">EU\/mL<\/td>\n<td width=\"108\">&lt;20<\/td>\n<td width=\"114\">&lt;0.100<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Mycoplasma (Barile &amp; Kern; Large Volume, Direct Culture)<\/td>\n<td width=\"120\">NA<\/td>\n<td width=\"108\">Not Detected<\/td>\n<td width=\"114\">Not Detected<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">IgG<\/td>\n<td width=\"120\">Elliza<\/td>\n<td width=\"108\">Measured<\/td>\n<td width=\"114\">0.19 ug\/ml<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Albumin<\/td>\n<td width=\"120\">Eliza<\/td>\n<td width=\"108\">Measured<\/td>\n<td width=\"114\">\u2264 4.6 g\/dL<\/td>\n<\/tr>\n<tr>\n<td width=\"366\"><strong>Virus Testing <\/strong><\/td>\n<td width=\"120\"><\/td>\n<td width=\"108\"><\/td>\n<td width=\"114\"><\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Horse Rhinopneumonitis\/Equine Herpesvirus (EHV)<\/td>\n<td width=\"120\">NA<\/td>\n<td width=\"108\">Not Detected<\/td>\n<td width=\"114\">Not Detected<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Horse Equine Encephalomyelitis<\/td>\n<td width=\"120\">NA<\/td>\n<td width=\"108\">Not Detected<\/td>\n<td width=\"114\">Not Detected<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Horse Equine Infectious Anemia Virus (EIA)<\/td>\n<td width=\"120\">NA<\/td>\n<td width=\"108\">Not Detected<\/td>\n<td width=\"114\">Not Detected<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Horse West Nile Virus<\/td>\n<td width=\"120\">NA<\/td>\n<td width=\"108\">Not Detected<\/td>\n<td width=\"114\">Not Detected<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Rabies<\/td>\n<td width=\"120\">NA<\/td>\n<td width=\"108\">Not Detected<\/td>\n<td width=\"114\">Not Detected<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Reovirus<\/td>\n<td width=\"120\">NA<\/td>\n<td width=\"108\">Not Detected<\/td>\n<td width=\"114\">Not Detected<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Cytopathogenic Agents (IBR)<\/td>\n<td width=\"120\">NA<\/td>\n<td width=\"108\">Not Detected<\/td>\n<td width=\"114\">Not Detected<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Hemadsorbing Agents (PI3)<\/td>\n<td width=\"120\">NA<\/td>\n<td width=\"108\">Not Detected<\/td>\n<td width=\"114\">Not Detected<\/td>\n<\/tr>\n<tr>\n<td width=\"366\">Bluetongue<\/td>\n<td width=\"120\">NA<\/td>\n<td width=\"108\">Not Detected<\/td>\n<td width=\"114\">Not Detected<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><strong>Learn more:<\/strong> <a href=\"\/what-is-horse-serum\/\">What Is Horse Serum?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A versatile growth supplement used in labs worldwide for routine in vitro culture of many cell types.<\/p>\n<ul>\n<li>Supports growth of human embryo fibroblasts and hepatitis models<\/li>\n<li>US-origin horse serum for general cell and tissue culture<\/li>\n<\/ul>\n","protected":false},"featured_media":127212,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[31,590],"product_tag":[554],"class_list":["post-58473","product","type-product","status-publish","has-post-thumbnail","product_cat-fetal-bovine-serum","product_cat-horse-serums","product_tag-horse-serum","entry","has-media","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-variable","has-product-nav","col","span_1_of_4","owp-content-center","owp-thumbs-layout-horizontal","owp-btn-normal","owp-tabs-layout-horizontal","has-no-thumbnails"],"acf":[],"_links":{"self":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product\/58473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/comments?post=58473"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/media\/127212"}],"wp:attachment":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/media?parent=58473"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product_brand?post=58473"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product_cat?post=58473"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product_tag?post=58473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}