{"id":675,"date":"2026-05-14T16:20:40","date_gmt":"2026-05-14T15:20:40","guid":{"rendered":"http:\/\/seamlessbio.de\/?page_id=675"},"modified":"2026-06-27T17:51:31","modified_gmt":"2026-06-27T16:51:31","slug":"serum-replacement","status":"publish","type":"page","link":"https:\/\/seamlessbio.de\/de\/serum-replacement\/","title":{"rendered":"Serumersatz"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"675\" class=\"elementor elementor-675\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c34635d e-con e-atomic-element e-flexbox-base e-c2b4054 \" data-id=\"c34635d\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"c34635d\">\n    \t\t<div class=\"elementor-element elementor-element-42fa24d elementor-widget elementor-widget-html\" data-id=\"42fa24d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!--\nYOAST SEO \u2014 seamlessbio.de\nSlug:        \/products\/cell-culture-media-reagents\/serum-replacement\/\nFocus KW:    serum replacement cell culture\nSEO Title:   Serum Replacement for Cell Culture | FBS Alternatives | SeamlessBio\nMeta Desc:   Serum replacements for cell culture \u2014 Human Platelet Lysate, recombinant albumin, knockout serum replacement and custom formulations. Xeno-free and GMP-ready options. EU supplier. SeamlessBio.\nBreadcrumb:  Home \u203a Products \u203a Cell Culture Media \u203a Serum Replacement\n-->\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"BreadcrumbList\",\n      \"itemListElement\": [\n        { \"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/www.seamlessbio.de\/\" },\n        { \"@type\": \"ListItem\", \"position\": 2, \"name\": \"Products\", \"item\": \"https:\/\/www.seamlessbio.de\/products\/\" },\n        { \"@type\": \"ListItem\", \"position\": 3, \"name\": \"Cell Culture Media\", \"item\": \"https:\/\/www.seamlessbio.de\/products\/cell-culture-media-reagents\/\" },\n        { \"@type\": \"ListItem\", \"position\": 4, \"name\": \"Serum Replacement\", \"item\": \"https:\/\/www.seamlessbio.de\/products\/cell-culture-media-reagents\/serum-replacement\/\" }\n      ]\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        { \"@type\": \"Question\", \"name\": \"What is serum replacement in cell culture?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Serum replacement refers to defined or semi-defined supplements that replace animal serum (typically FBS) in cell culture media. Common serum replacements include Human Platelet Lysate (hPL) for MSC culture, recombinant albumin (rHSA) as a protein carrier, and knockout serum replacement (KSR) for pluripotent stem cell culture.\" } },\n        { \"@type\": \"Question\", \"name\": \"What is the best serum replacement for MSC expansion?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Human Platelet Lysate (hPL) is the most widely validated xeno-free serum replacement for mesenchymal stem cell expansion. hPL typically supports equivalent or superior MSC growth compared to FBS, with maintained multipotency and xeno-free compliance for clinical manufacturing.\" } },\n        { \"@type\": \"Question\", \"name\": \"Can recombinant albumin (rHSA) replace BSA or HSA in serum-free media?\", \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. Recombinant human serum albumin (rHSA) produced in rice or CHO cells provides a defined, animal-free alternative to serum-derived BSA or HSA. rHSA is used as a protein carrier, fatty acid vehicle and cryoprotectant in serum-free and xeno-free cell culture formulations.\" } }\n      ]\n    }\n  ]\n}\n<\/script>\n\n<section class=\"sb-sr-page\">\n<div class=\"sb-sr-container\">\n\n  <!-- BREADCRUMB -->\n  <nav class=\"sb-sr-bc\">\n    <a href=\"https:\/\/www.seamlessbio.de\/\">Home<\/a><span>\/<\/span>\n    <a href=\"https:\/\/www.seamlessbio.de\/products\/cell-culture-media-reagents\/\">Cell Culture Media<\/a><span>\/<\/span>\n    <strong>Serum Replacement<\/strong>\n  <\/nav>\n\n  <!-- HERO -->\n  <div class=\"sb-sr-hero\">\n    <div class=\"sb-sr-hero-text\">\n      <span class=\"sb-sr-eyebrow\">FBS Alternatives \u00b7 Xeno-Free Options \u00b7 EU Supply<\/span>\n      <h1>Serum Replacement for Cell Culture<\/h1>\n      <p>Defined supplements that replace animal serum in cell culture \u2014 from Human Platelet Lysate for xeno-free MSC expansion to recombinant albumin as a protein carrier in chemically defined media. Improve reproducibility, reduce variability and advance your regulatory pathway.<\/p>\n      <div class=\"sb-sr-hero-tags\">\n        <span>Human Platelet Lysate (hPL)<\/span>\n        <span>Recombinant Albumin (rHSA)<\/span>\n        <span>Xeno-Free Options<\/span>\n        <span>GMP-Ready<\/span>\n      <\/div>\n      <a href=\"https:\/\/www.seamlessbio.de\/about-us\/contact-imprint\/\" class=\"sb-sr-btn\">Request Information<\/a>\n    <\/div>\n    <div class=\"sb-sr-hero-vis\">\n      <div class=\"sb-sr-comparison-vis\">\n        <div class=\"sb-sr-vis-col\">\n          <div class=\"sb-sr-vis-header sb-sr-vis-fbs\">FBS<\/div>\n          <div class=\"sb-sr-vis-item\">Undefined composition<\/div>\n          <div class=\"sb-sr-vis-item\">Lot-to-lot variability<\/div>\n          <div class=\"sb-sr-vis-item\">BSE\/TSE documentation<\/div>\n          <div class=\"sb-sr-vis-item\">Ethical concerns<\/div>\n          <div class=\"sb-sr-vis-item\">Supply uncertainty<\/div>\n        <\/div>\n        <div class=\"sb-sr-vis-arrow\">\u2192<\/div>\n        <div class=\"sb-sr-vis-col\">\n          <div class=\"sb-sr-vis-header sb-sr-vis-sr\">Serum Replacement<\/div>\n          <div class=\"sb-sr-vis-item sb-sr-vis-good\">Defined \/ semi-defined<\/div>\n          <div class=\"sb-sr-vis-item sb-sr-vis-good\">Consistent performance<\/div>\n          <div class=\"sb-sr-vis-item sb-sr-vis-good\">Clean regulatory path<\/div>\n          <div class=\"sb-sr-vis-item sb-sr-vis-good\">Xeno-free options<\/div>\n          <div class=\"sb-sr-vis-item sb-sr-vis-good\">Stable EU supply<\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <!-- PRODUCTS -->\n  <div class=\"sb-sr-section\">\n    <h2>Serum Replacement Products<\/h2>\n    <div class=\"sb-sr-prod-grid\">\n\n      <!-- hPL -->\n      <div class=\"sb-sr-prod-card sb-sr-prod-main\">\n        <div class=\"sb-sr-prod-badge\">Most Popular for MSC<\/div>\n        <h3>Human Platelet Lysate (hPL)<\/h3>\n        <p class=\"sb-sr-prod-sub\">Xeno-free serum replacement for mesenchymal stem cell expansion<\/p>\n        <p>hPL is the gold standard xeno-free serum replacement for clinical-grade MSC manufacturing. Contains a broad spectrum of human growth factors \u2014 PDGF, TGF-\u03b2, FGF, EGF, VEGF, IGF \u2014 supporting robust MSC proliferation with maintained multipotency and surface marker phenotype.<\/p>\n        <table class=\"sb-sr-spec-table\">\n          <tr><td>Cell lines<\/td><td>MSCs (BM, adipose, cord), HSCs, fibroblasts<\/td><\/tr>\n          <tr><td>Usage concentration<\/td><td>5\u201310% in serum-free basal medium<\/td><\/tr>\n          <tr><td>Classification<\/td><td>Xeno-free \u2014 human-derived only<\/td><\/tr>\n          <tr><td>GMP grade<\/td><td>Available on request<\/td><\/tr>\n          <tr><td>Documentation<\/td><td>CoA, pathogen testing, pooled donor<\/td><\/tr>\n        <\/table>\n        <a href=\"https:\/\/www.seamlessbio.de\/products\/human-sera-plasma-and-more\/human-platelet-lysate-hpl\/\" class=\"sb-sr-prod-btn\">View hPL Product Page \u2192<\/a>\n      <\/div>\n\n      <!-- rHSA -->\n      <div class=\"sb-sr-prod-card\">\n        <h3>Recombinant Human Albumin (rHSA)<\/h3>\n        <p class=\"sb-sr-prod-sub\">Defined protein carrier for serum-free and xeno-free media<\/p>\n        <p>rHSA produced in rice (Oryza sativa) or CHO cells provides a fully defined, animal-free alternative to serum-derived BSA or HSA. Used as a fatty acid vehicle, osmotic stabiliser and cryoprotectant in serum-free formulations for stem cells, iPSC, organoids and biopharmaceutical production.<\/p>\n        <table class=\"sb-sr-spec-table\">\n          <tr><td>Application<\/td><td>Media supplement, cryoprotection, fatty acid carrier<\/td><\/tr>\n          <tr><td>Production<\/td><td>Rice-derived or CHO-expressed<\/td><\/tr>\n          <tr><td>Classification<\/td><td>Animal-origin-free (rice) or defined (CHO)<\/td><\/tr>\n          <tr><td>Grades<\/td><td>Premium, Economy, CHO-expressed<\/td><\/tr>\n          <tr><td>IgG-free<\/td><td>Yes<\/td><\/tr>\n        <\/table>\n        <a href=\"https:\/\/www.seamlessbio.de\/products\/albumin-proteins\/rec-human-serum-albumin-rec-hsa\/\" class=\"sb-sr-prod-btn\">View rHSA Product Page \u2192<\/a>\n      <\/div>\n\n      <!-- BSA IgG-free -->\n      <div class=\"sb-sr-prod-card\">\n        <h3>BSA \u2014 IgG-Free, Low Endotoxin<\/h3>\n        <p class=\"sb-sr-prod-sub\">Bovine serum albumin for serum-free media supplementation<\/p>\n        <p>IgG-free, low endotoxin BSA (Fraction V) as a cost-effective protein carrier and stabiliser in serum-free media. Used in organoid culture, N2B27-based formulations, DMPK assay buffers, and as a blocking reagent. Available in fatty acid-free variant for lipid research applications.<\/p>\n        <table class=\"sb-sr-spec-table\">\n          <tr><td>Variants<\/td><td>Standard \u00b7 Low endotoxin \u00b7 Fatty acid-free \u00b7 pH 5.2<\/td><\/tr>\n          <tr><td>IgG content<\/td><td>&lt;2 mg\/g (IgG-free grade)<\/td><\/tr>\n          <tr><td>Endotoxin<\/td><td>&lt;1 EU\/mg (low endotoxin grade)<\/td><\/tr>\n          <tr><td>Application<\/td><td>Media supplement, assay buffers, cell culture<\/td><\/tr>\n          <tr><td>Animal origin<\/td><td>Bovine serum-derived<\/td><\/tr>\n        <\/table>\n        <a href=\"https:\/\/www.seamlessbio.de\/products\/albumin-proteins\/bsa-low-endotoxin\/\" class=\"sb-sr-prod-btn\">View BSA Products \u2192<\/a>\n      <\/div>\n\n      <!-- Human Serum AB -->\n      <div class=\"sb-sr-prod-card\">\n        <h3>Human Serum AB \/ Type AB Male<\/h3>\n        <p class=\"sb-sr-prod-sub\">Xeno-free serum supplement for T-cell and immune cell culture<\/p>\n        <p>Human Serum Type AB (blood group AB, male donors) is the standard xeno-free serum supplement for T-cell expansion protocols in CAR-T manufacturing. Replaces FBS in PBMC and T-cell expansion media while maintaining CD4\/CD8 ratios and T-cell activation efficiency.<\/p>\n        <table class=\"sb-sr-spec-table\">\n          <tr><td>Blood group<\/td><td>AB (universal \u2014 no anti-A or anti-B antibodies)<\/td><\/tr>\n          <tr><td>Donor<\/td><td>Male (eliminates HLA antibodies from female donors)<\/td><\/tr>\n          <tr><td>Application<\/td><td>T-cell expansion, PBMC culture, immune assays<\/td><\/tr>\n          <tr><td>Classification<\/td><td>Xeno-free \u2014 human-derived<\/td><\/tr>\n          <tr><td>Usage concentration<\/td><td>2\u201310% in T-cell expansion medium<\/td><\/tr>\n        <\/table>\n        <a href=\"https:\/\/www.seamlessbio.de\/products\/human-sera-plasma-and-more\/human-serum-type-ab-male\/\" class=\"sb-sr-prod-btn\">View Human Serum AB \u2192<\/a>\n      <\/div>\n\n    <\/div>\n  <\/div>\n\n  <!-- SELECTION GUIDE -->\n  <div class=\"sb-sr-section sb-sr-alt\">\n    <h2>Which Serum Replacement for Which Application?<\/h2>\n    <div class=\"sb-sr-table-wrap\">\n      <table class=\"sb-sr-guide-table\">\n        <thead>\n          <tr><th>Application<\/th><th>Recommended Replacement<\/th><th>Classification<\/th><th>Notes<\/th><\/tr>\n        <\/thead>\n        <tbody>\n          <tr><td>MSC expansion (clinical)<\/td><td><strong>hPL (5\u201310%)<\/strong><\/td><td>Xeno-free<\/td><td>Gold standard \u2014 equivalent or superior to FBS for MSC growth<\/td><\/tr>\n          <tr><td>T-cell \/ CAR-T expansion<\/td><td><strong>Human Serum AB Male (2\u201310%)<\/strong><\/td><td>Xeno-free<\/td><td>Maintains CD4\/CD8 ratio, eliminates HLA antibody risk<\/td><\/tr>\n          <tr><td>iPSC \/ hPSC (primed)<\/td><td><strong>rHSA + defined supplements<\/strong><\/td><td>Animal-origin-free<\/td><td>Component in E8\/Essential 8-type formulations<\/td><\/tr>\n          <tr><td>Naive hPSC<\/td><td><strong>NaivaCore (BSA Frac V IgG-free)<\/strong><\/td><td>Defined<\/td><td>NT-Supplement contains BSA Fraction V as protein carrier<\/td><\/tr>\n          <tr><td>Organoid culture<\/td><td><strong>BSA IgG-free or rHSA<\/strong><\/td><td>Defined<\/td><td>N2B27-based organoid media use BSA as protein carrier<\/td><\/tr>\n          <tr><td>CHO mAb production<\/td><td><strong>rHSA + defined amino acids<\/strong><\/td><td>Chemically defined<\/td><td>Replaces serum protein functions in CD-CHO formulations<\/td><\/tr>\n          <tr><td>HEK293 vector production<\/td><td><strong>Serum-free CD medium<\/strong><\/td><td>AOF<\/td><td>No albumin supplement required in optimised SF media<\/td><\/tr>\n          <tr><td>DMPK assay buffers<\/td><td><strong>BSA fatty acid-free (0.1\u20131%)<\/strong><\/td><td>Defined<\/td><td>Protein binding studies require fatty acid-free BSA<\/td><\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n  <\/div>\n\n  <!-- WHY REPLACE -->\n  <div class=\"sb-sr-section\">\n    <h2>Why Replace Animal Serum?<\/h2>\n    <div class=\"sb-sr-why-grid\">\n      <div class=\"sb-sr-why-card\">\n        <h3>Regulatory Compliance<\/h3>\n        <p>Serum-free and xeno-free formulations eliminate BSE\/TSE risk documentation requirements and simplify IND, IMPD and BLA\/MAA submissions for clinical-grade manufacturing.<\/p>\n      <\/div>\n      <div class=\"sb-sr-why-card\">\n        <h3>Batch Consistency<\/h3>\n        <p>FBS lot-to-lot variability is one of the leading sources of irreproducible cell culture results. Defined serum replacements eliminate this variable.<\/p>\n      <\/div>\n      <div class=\"sb-sr-why-card\">\n        <h3>Ethical & Sustainable<\/h3>\n        <p>Reducing or eliminating FBS use is a priority for ethical cell culture. Human-derived (hPL, Human Serum) and recombinant (rHSA) alternatives avoid fetal animal collection.<\/p>\n      <\/div>\n      <div class=\"sb-sr-why-card\">\n        <h3>Supply Chain Security<\/h3>\n        <p>FBS supply is subject to global market fluctuations, origin restrictions and seasonal variation. EU-sourced serum replacements offer more stable supply with shorter lead times.<\/p>\n      <\/div>\n    <\/div>\n  <\/div>\n\n  <!-- RELATED -->\n  <div class=\"sb-sr-section sb-sr-alt\">\n    <h2>Related Products<\/h2>\n    <div class=\"sb-sr-related\">\n      <a href=\"https:\/\/www.seamlessbio.de\/products\/human-sera-plasma-and-more\/\" class=\"sb-sr-rel-card\">\n        <h3>Human Sera & Plasma<\/h3>\n        <p>Human Serum Standard, Type AB, OTC, Male \u2014 for immunoassays, cell culture and IVD applications.<\/p>\n      <\/a>\n      <a href=\"https:\/\/www.seamlessbio.de\/products\/albumin-proteins\/\" class=\"sb-sr-rel-card\">\n        <h3>Albumin & Proteins<\/h3>\n        <p>BSA, HSA and rHSA in multiple grades \u2014 low endotoxin, fatty acid-free, IgG-free and GMP.<\/p>\n      <\/a>\n      <a href=\"https:\/\/www.seamlessbio.de\/products\/cell-culture-media-reagents\/custom-cell-culture-media\/\" class=\"sb-sr-rel-card\">\n        <h3>Custom Cell Culture Media<\/h3>\n        <p>Complete serum-free media development including serum replacement optimisation for your cell line.<\/p>\n      <\/a>\n      <a href=\"https:\/\/www.seamlessbio.de\/products\/animal-sera\/bovine-sera-and-more\/newborn-calf-serum-ncs\/\" class=\"sb-sr-rel-card\">\n        <h3>NCS \u2014 Newborn Calf Serum<\/h3>\n        <p>Cost-effective FBS alternative for routine cell culture where serum-free transition is not yet required.<\/p>\n      <\/a>\n    <\/div>\n  <\/div>\n\n  <!-- CTA -->\n  <div class=\"sb-sr-cta\">\n    <h2>Find the Right Serum Replacement<\/h2>\n    <p>Tell us your cell line and application \u2014 we'll recommend the right replacement and help you transition from FBS.<\/p>\n    <div class=\"sb-sr-cta-btns\">\n      <a href=\"https:\/\/www.seamlessbio.de\/about-us\/contact-imprint\/\" class=\"sb-sr-btn-w\">Contact Us<\/a>\n      <a href=\"mailto:info@seamlessbio.de\" class=\"sb-sr-btn-o\">info@seamlessbio.de<\/a>\n    <\/div>\n  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