{"id":3538,"date":"2026-09-16T12:09:50","date_gmt":"2026-09-16T11:09:50","guid":{"rendered":"https:\/\/seamlessbio.de\/produkt\/recombinant-human-serum-albumin-rhsa-economy-grade-90-99-purity-ivd-cosmetics\/"},"modified":"2026-09-19T19:15:00","modified_gmt":"2026-09-19T18:15:00","slug":"recombinant-human-serum-albumin-rhsa-economy-grade-90-99-purity-ivd-cosmetics","status":"publish","type":"product","link":"https:\/\/seamlessbio.de\/de\/product\/recombinant-human-serum-albumin-rhsa-economy-grade-90-99-purity-ivd-cosmetics\/","title":{"rendered":"Recombinant Human Serum Albumin (rHSA) \u2013 Economy Grade | 90\u201399% Purity | IVD &#038; Cosmetics"},"content":{"rendered":"<style>\n.sb-pd{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,sans-serif;max-width:100%;color:#202020;line-height:1.75}\n.sb-pd .def{background:#e9fbfa;border-left:4px solid #18b7b2;border-radius:0 10px 10px 0;padding:16px 20px;margin:0 0 28px}\n.sb-pd .def .lb{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.09em;color:#139b97;display:block;margin-bottom:5px}\n.sb-pd .def p{font-size:15px;margin:0;font-weight:500}\n.sb-pd h2{font-size:21px;font-weight:800;margin:32px 0 10px;color:#111;border-bottom:2px solid #e2eceb;padding-bottom:7px}\n.sb-pd h3{font-size:15px;font-weight:700;color:#18b7b2;margin:18px 0 5px}\n.sb-pd p{margin:0 0 12px;font-size:15px}\n.sb-pd ul{margin:0 0 12px;padding-left:20px}\n.sb-pd li{margin-bottom:6px;font-size:14px}\n.sb-pd .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:14px 0 20px}\n.sb-pd .card{background:#f1faf9;border:1px solid #daf3f2;border-top:3px solid #18b7b2;border-radius:0 0 10px 10px;padding:14px}\n.sb-pd .card h3{margin:0 0 5px;font-size:13px;color:#111}\n.sb-pd .card p{margin:0;font-size:12px;color:#5b6b71}\n.sb-pd table{width:100%;border-collapse:collapse;font-size:14px;margin:14px 0 20px}\n.sb-pd th{background:#18b7b2;color:#fff;text-align:left;padding:9px 13px;font-weight:700}\n.sb-pd td{padding:9px 13px;border-bottom:1px solid #e2eceb;vertical-align:top}\n.sb-pd tr:nth-child(even) td{background:#f8fffe}\n.sb-pd td:first-child{font-weight:600;color:#111;width:35%}\n.sb-pd .qa{background:#f8fffe;border:1px solid #daf3f2;border-radius:8px;padding:14px 16px;margin:10px 0}\n.sb-pd .qa .q{font-weight:700;color:#111;margin:0 0 5px;font-size:14px}\n.sb-pd .qa .a{margin:0;font-size:13px;color:#444}\n.sb-pd .cta{background:linear-gradient(135deg,#e4f6f5,#f4fbfb);border:1px solid rgba(24,183,178,.2);border-radius:12px;padding:20px;margin-top:28px;text-align:center}\n.sb-pd .cta h3{margin:0 0 7px;font-size:17px;color:#111}\n.sb-pd .cta p{margin:0 0 14px;font-size:13px;color:#5b6b71}\n.sb-pd .btn{display:inline-block;background:#18b7b2;color:#fff!important;padding:9px 20px;border-radius:7px;font-weight:700;font-size:13px;text-decoration:none!important;margin:0 4px}\n.sb-pd .btn-o{display:inline-block;border:2px solid #18b7b2;color:#18b7b2!important;padding:7px 20px;border-radius:7px;font-weight:700;font-size:13px;text-decoration:none!important;margin:0 4px}\n.sb-pd a{color:#18b7b2;font-weight:600}\n@media(max-width:600px){.sb-pd .cards{grid-template-columns:1fr}}\n<\/style>\n<div class=\"sb-pd\">\n<h2>Product Overview<\/h2>\n<p>SeamlessBio <strong>rHSA Economy-Klasse<\/strong> is a cost-effective, animal-free recombinant human serum albumin expressed in genetically modified rice endosperm (<em>Oryza sativa<\/em>). Purified by single-step chromatography to <strong>90\u201399% purity<\/strong> with endotoxin &lt;5 EU\/mg \u2014 the practical choice for <strong>IVD blocking reagents<\/strong>, diagnostic reference materials, cosmetic formulations, and method development where budget and throughput matter more than ultra-low endotoxin.<\/p>\n<p>Fully TSE\/BSE-free, no animal raw materials used at any stage. Available as lyophilised powder in pack sizes from 10 g to 500 g, delivered from EU stock. For applications requiring \u226599% purity and ultra-low endotoxin (&lt;0.125 EU\/mg), see the <a href=\"https:\/\/seamlessbio.de\/de\/rhsa-premium\/\">rHSA Premium-Qualit\u00e4t<\/a>. Explore the full <a href=\"https:\/\/seamlessbio.de\/de\/human-serum-plasma-und-mehr\/\">Human Sera &amp; Albumin Portfolio<\/a>.<\/p>\n<h2>Technische Daten<\/h2>\n<table>\n<thead>\n<tr>\n<th>Parameter<\/th>\n<th>Spezifikation<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Expressionssystem<\/td>\n<td>Rice (<em>Oryza sativa<\/em>) endosperm \u2014 100% animal-free<\/td>\n<\/tr>\n<tr>\n<td>Purity (SDS-PAGE)<\/td>\n<td>90\u201399% \u2014 single-step chromatography<\/td>\n<\/tr>\n<tr>\n<td>Bacterial endotoxins<\/td>\n<td>&lt;5 EU\/mg (LAL method)<\/td>\n<\/tr>\n<tr>\n<td>pH<\/td>\n<td>6.0\u20138.0<\/td>\n<\/tr>\n<tr>\n<td>Form<\/td>\n<td>Lyophilised powder<\/td>\n<\/tr>\n<tr>\n<td>Reconstitution<\/td>\n<td>Sterile PBS or 0.9% NaCl; fully soluble within 15 min<\/td>\n<\/tr>\n<tr>\n<td>Lagerung<\/td>\n<td>2\u20138 \u00b0C; shelf life 5 years from manufacture<\/td>\n<\/tr>\n<tr>\n<td>TSE\/BSE status<\/td>\n<td>TSE\/BSE-free \u2014 no animal raw materials used<\/td>\n<\/tr>\n<tr>\n<td>Manufacturer<\/td>\n<td>Wuhan Healthgen Biotechnology Corp. (Oryzogen); distributed under SeamlessBio label<\/td>\n<\/tr>\n<tr>\n<td>Regulatorisch<\/td>\n<td>For Research Use Only (RUO). CoA, CoO and SDS on request.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Anwendungen<\/h2>\n<table>\n<thead>\n<tr>\n<th>Anwendung<\/th>\n<th>Function of rHSA Economy Grade<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>IVD reagent manufacturing<\/strong><\/td>\n<td>Cost-effective blocking agent and carrier protein for ELISA kits, lateral flow assays, immunoturbidimetric assays, and clinical chemistry reagents where standard endotoxin tolerance applies.<\/td>\n<\/tr>\n<tr>\n<td><strong>Diagnostic reference standards<\/strong><\/td>\n<td>Matrix protein for calibrators and quality control materials in routine diagnostic assays.<\/td>\n<\/tr>\n<tr>\n<td><strong>Cosmetics &amp; personal care<\/strong><\/td>\n<td>Animal-free, human-identical protein ingredient for skin care, hair care, and anti-ageing formulations.<\/td>\n<\/tr>\n<tr>\n<td><strong>Enzyme &amp; protein stabilisation<\/strong><\/td>\n<td>Carrier and stabiliser for enzymes, antibodies, and other proteins in research buffers and storage solutions.<\/td>\n<\/tr>\n<tr>\n<td><strong>Method development &amp; screening<\/strong><\/td>\n<td>Economical option for assay development, protein binding studies, and screening experiments where premium purity is not required.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Complete SeamlessBio rHSA Portfolio<\/h2>\n<table>\n<thead>\n<tr>\n<th>Note<\/th>\n<th>Reinheit<\/th>\n<th>Endotoxin<\/th>\n<th>Am besten geeignet f\u00fcr<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><a href=\"https:\/\/seamlessbio.de\/de\/rhsa-premium\/\">rHSA Premium-Qualit\u00e4t<\/a><\/td>\n<td>\u226599%<\/td>\n<td>&lt;0.125 EU\/mg<\/td>\n<td>Cell culture, ATMP, IVD<\/td>\n<\/tr>\n<tr>\n<td>rHSA Economy Grade (this product)<\/td>\n<td>90\u201399%<\/td>\n<td>&lt;5 EU\/mg<\/td>\n<td>IVD blocking, cosmetics, method dev<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/seamlessbio.de\/de\/rhsa-cho\/\">rHSA CHO-exprimiert<\/a><\/td>\n<td>\u226595%<\/td>\n<td>&lt;1 EU\/mg<\/td>\n<td>ADME, drug formulation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Available Formats<\/h2>\n<table>\n<thead>\n<tr>\n<th>Format<\/th>\n<th>Size<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Lyophilised powder<\/td>\n<td>10 g<\/td>\n<\/tr>\n<tr>\n<td>Lyophilised powder<\/td>\n<td>100 g<\/td>\n<\/tr>\n<tr>\n<td>Lyophilised powder<\/td>\n<td>500 g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Key Benefits<\/h2>\n<div class=\"cards\">\n<div class=\"card\">\n<h3>Sammelreservierung<\/h3>\n<p>Reserve validated lots up to 36 months for reproducible long-term workflows.<\/p>\n<\/div>\n<div class=\"card\">\n<h3>Vollst\u00e4ndige Dokumentation<\/h3>\n<p>CoA, BSE\/TSE statement, CoO and SDS \u2014 from ISO 9001 and ISO 13485 certified partner facilities. Additional documents on request.<\/p>\n<\/div>\n<div class=\"card\">\n<h3>EU &amp; Swiss Supply<\/h3>\n<p>Sourced from certified EU and Swiss partner facilities \u2014 fast delivery across EU, UK and Switzerland, full documentation included.<\/p>\n<\/div>\n<\/div>\n<h2>H\u00e4ufig gestellte Fragen<\/h2>\n<div class=\"qa\">\n<p class=\"q\">What is the difference between rHSA Economy Grade and rHSA Premium Grade?<\/p>\n<p class=\"a\">rHSA Economy Grade is purified by single-step chromatography to 90\u201399% purity with endotoxin &lt;5 EU\/mg \u2014 optimised for cost-sensitive applications such as IVD blocking, diagnostic matrix proteins, and cosmetic formulations. rHSA Premium Grade achieves \u226599% purity and ultra-low endotoxin (&lt;0.125 EU\/mg) through multi-step chromatography, making it suitable for cell culture, ATMP manufacturing, and stringent IVD applications. If your process specifies endotoxin below 1 EU\/mg or purity \u226599%, upgrade to the Premium Grade.<\/p>\n<\/div>\n<div class=\"qa\">\n<p class=\"q\">Is rHSA Economy Grade suitable for use in ELISA kits and lateral flow assay manufacturing?<\/p>\n<p class=\"a\">Yes \u2014 rHSA Economy Grade is well suited for IVD reagent manufacturing where endotoxin \u22645 EU\/mg is acceptable. It functions as a blocking agent, carrier protein, and diluent matrix in ELISA kits, lateral flow strips, and immunoturbidimetric reagents. For lateral flow assay conjugate pads and membranes where tighter endotoxin control is required, we recommend evaluating the rHSA Premium Grade.<\/p>\n<\/div>\n<div class=\"qa\">\n<p class=\"q\">Why choose rice-expressed rHSA over plasma-derived HSA for IVD and cosmetic applications?<\/p>\n<p class=\"a\">Rice-expressed rHSA (Oryza sativa endosperm system) is 100% animal-free and TSE\/BSE-free, eliminating the pathogen transmission risks and lot-to-lot variability associated with plasma-derived Human Serum Albumin (HSA). For IVD manufacturers, this simplifies regulatory documentation. For cosmetics, it supports cruelty-free and vegan labelling claims. The protein is structurally identical to native HSA \u2014 same amino acid sequence, same functional properties.<\/p>\n<\/div>\n<div class=\"qa\">\n<p class=\"q\">What pack sizes are available and is batch reservation possible?<\/p>\n<p class=\"a\">rHSA Economy Grade is available as lyophilised powder in 10 g, 100 g, and 500 g pack sizes. Batch reservation is available for up to 36 months \u2014 contact our team with your required volume and project timeline to hold a validated lot across your production programme. Custom quantities may be available on request.<\/p>\n<\/div>\n<div class=\"qa\">\n<p class=\"q\">What documentation is supplied with rHSA Economy Grade?<\/p>\n<p class=\"a\">Every order is accompanied by a Certificate of Analysis (CoA) with lot-specific test results. Additional documentation \u2014 including BSE\/TSE statements, Certificate of Origin (CoO), Safety Data Sheet (SDS), and sterility certificates \u2014 is available on request. Products are manufactured at ISO 9001 and ISO 13485 certified partner facilities.<\/p>\n<\/div>\n<div class=\"cta\">\n<h3>Request a Quote or Sample<\/h3>\n<p>48h response \u00b7 EU &amp; Swiss Supply \u00b7 Batch reservation available \u00b7 Full documentation<\/p>\n<p>  <a href=\"https:\/\/seamlessbio.de\/de\/request-quote\/\" class=\"btn\">Request Quote \u2192<\/a><br \/>\n  <a href=\"https:\/\/seamlessbio.de\/de\/human-serum-plasma-und-mehr\/\" class=\"btn-o\">Human Sera &amp; Albumin Portfolio \u2192<\/a>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Recombinant Human Serum Albumin (rHSA) \u2013 Economy Grade | 90\u201399% Purity | IVD &#038; Cosmetics. Available in 10g, 100g, 500g. Price on request \u2014 contact our team for availability, batch documentation and delivery. <\/p>\n<div style='margin-top:12px'><a href='https:\/\/seamlessbio.de\/de\/sammelreservierung\/' style='display:block;background:#fff;border:2px solid #18b7b2;color:#18b7b2;padding:10px 24px;border-radius:8px;font-weight:700;font-size:14px;text-decoration:none;text-align:center;'>Test Sample &amp; Batch Reservation \u2192<\/a><\/div>","protected":false},"featured_media":3655,"template":"","meta":{"_eb_attr":""},"product_brand":[],"product_cat":[54],"product_tag":[55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72],"class_list":["post-3538","product","type-product","status-publish","has-post-thumbnail","product_cat-albumin-proteins","product_tag-biological-research","product_tag-biotech","product_tag-biotechnology","product_tag-cell-culture","product_tag-diagnostic-research","product_tag-endotoxin-tested","product_tag-full-coa-documentation","product_tag-growth-factors","product_tag-high-purity","product_tag-high-purity-hsa","product_tag-human-serum-albumin","product_tag-laboratory-reagents","product_tag-protein-research","product_tag-protein-stabilizer","product_tag-proteolytic-enzymes","product_tag-research-reagents","product_tag-seamlessbio","product_tag-serum-alternatives","first","instock","taxable","shipping-taxable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>rHSA Economy Grade IVD Cosmetics | SeamlessBio<\/title>\n<meta name=\"description\" content=\"Rice-expressed rHSA Economy Grade: 90\u201399% purity, &lt;5 EU\/mg, animal-free. 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