{"product_id":"fbs-male","title":"FBS Male | US Origin | sterile filtered","description":"\u003ch2\u003eFBS Male – Gender-Defined Fetal Bovine Serum with Defined Testosterone Profile\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003eSeamlessBio FBS Male is fetal bovine serum collected exclusively from male (XY) bovine fetuses, providing a defined sex-hormone profile with elevated testosterone compared to mixed-gender or female FBS. As sex-specific effects of cell culture media components are increasingly recognized as a critical variable in biomedical research, FBS Male offers researchers a reproducible, documented serum source for applications requiring a defined androgenic hormonal environment.\u003c\/p\u003e\n\u003ch2\u003eWhy Does Serum Sex Matter?\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003eStandard FBS is collected from mixed-gender fetuses, resulting in a variable and undefined mix of male (testosterone-dominant) and female (estrogen-dominant) hormonal signals. Landmark research published in 2025 demonstrated that FBS exerts profound sex-specific effects on primary human endothelial cells – significantly upregulating endothelial function genes in XX cells while downregulating the same genes in XY cells. These findings highlight that for sex-specific research, the hormonal profile of your serum is a critical, often overlooked variable.\u003c\/p\u003e\n\u003ch2\u003eKey Advantages of FBS Male\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDefined testosterone profile – higher testosterone than mixed-gender or female FBS\u003c\/li\u003e\n\u003cli\u003eNo female estrogens – eliminates estrogenic interference in androgen-sensitive assays\u003c\/li\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003eReproducible androgenic environment – lot-to-lot consistency within gender-defined sourcing\u003c\/li\u003e\n\u003cli\u003eDocumented gender verification – CoA confirms male (XY) origin\u003c\/li\u003e\n\u003cli\u003eStandard FBS quality – 0.2 µm sterile filtered, mycoplasma tested, endotoxin tested\u003c\/li\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003eSupports sex-specific research reproducibility – aligns with NIH mandate to account for sex as a biological variable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 10.0pt 0cm 4.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.5pt; color: #2c3e50;\"\u003e1. Myoblast Differentiation (C2C12 \u0026amp; Primary Skeletal Muscle Cells)\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003eTestosterone promotes myogenic differentiation and extracellular matrix synthesis. FBS Male, with its elevated testosterone content, more closely mimics the androgenic environment of male muscle tissue and is preferred for C2C12 differentiation protocols and primary human skeletal muscle satellite cell expansion where male-physiology relevance is required.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003e\u003cb\u003eStandard protocol: \u003c\/b\u003eSwitch from 10% standard FBS (proliferation) to 2–5% horse serum or FBS Male (differentiation) to induce myotube formation in male-specific muscle biology contexts.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 10.0pt 0cm 4.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.5pt; color: #2c3e50;\"\u003e2. Sex-Specific Cell Culture Research\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003eAs regulatory agencies (NIH, EMA) increasingly mandate consideration of sex as a biological variable in preclinical research, FBS Male enables researchers to specifically model the androgenic serum environment in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProstate cancer cell lines (LNCaP, 22Rv1, LAPC4) – androgen-sensitive proliferation studies\u003c\/li\u003e\n\u003cli\u003eTestosterone-responsive signaling pathway research\u003c\/li\u003e\n\u003cli\u003eXY endothelial cell biology and vascular function studies\u003c\/li\u003e\n\u003cli\u003eMale-specific metabolic and hormonal assay models\u003c\/li\u003e\n\u003cli\u003eSex-disaggregated cell line studies per NIH sex-as-biological-variable guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 10.0pt 0cm 4.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.5pt; color: #2c3e50;\"\u003e3. Androgen Receptor Research\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003eFor cell lines expressing the androgen receptor (AR), the testosterone content of the serum directly influences basal AR activation levels. FBS Male provides a defined androgenic baseline, reducing experimental confounding versus undefined mixed-gender FBS in AR-pathway studies.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 10.0pt 0cm 4.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.5pt; color: #2c3e50;\"\u003e4. Veterinary \u0026amp; Equine Cell Biology\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003eMale bovine serum hormonal profile is relevant for in vitro models of male bovine reproductive biology and testosterone-driven cellular processes in veterinary research contexts.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003e \u003c\/p\u003e\n\u003ch2\u003eFBS Male vs. Standard FBS vs. Charcoal-Stripped FBS\u003c\/h2\u003e\n\u003ctable class=\"MsoNormalTable\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"602\" style=\"width: 451.3pt; border-collapse: collapse; border: none; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0cm .5pt 0cm .5pt; mso-border-insideh: .5pt solid windowtext; mso-border-insidev: .5pt solid windowtext;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"mso-yfti-irow: 0; mso-yfti-firstrow: yes;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; mso-border-alt: solid #DDDDDD .25pt; background: #D6EAF8; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eProperty\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border: solid #DDDDDD 1.0pt; border-left: none; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #EBF5FB; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eFBS Male | Standard FBS | Charcoal-Stripped FBS\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 1;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #F4F6F7; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eSex origin\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #FDFEFE; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eMale (XY) only | Mixed gender (undefined) | Mixed (hormones removed)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 2;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #D6EAF8; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eTestosterone\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #EBF5FB; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eHigh (defined) | Variable | Minimal (stripped)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 3;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #F4F6F7; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eEstrogens\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #FDFEFE; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eMinimal | Variable | Minimal (stripped)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 4;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #D6EAF8; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eGrowth factors\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #EBF5FB; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eFull FBS profile | Full FBS profile | Reduced (some stripped)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 5;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #F4F6F7; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eBest for\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #FDFEFE; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eMale sex-specific research, myoblast diff., AR studies | General cell culture | Hormone-sensitive assays, ER\/AR studies without exogenous hormones\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 6; mso-yfti-lastrow: yes;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #D6EAF8; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eUse case\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #EBF5FB; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eDefined androgenic environment | Universal default | Steroid-free baseline\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003ctable class=\"MsoNormalTable\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"602\" style=\"width: 451.3pt; border-collapse: collapse; border: none; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0cm .5pt 0cm .5pt; mso-border-insideh: .5pt solid windowtext; mso-border-insidev: .5pt solid windowtext;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"mso-yfti-irow: 0; mso-yfti-firstrow: yes;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; mso-border-alt: solid #DDDDDD .25pt; background: #D6EAF8; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eProduct name\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border: solid #DDDDDD 1.0pt; border-left: none; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #EBF5FB; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eFBS Male – Gender-Defined Fetal Bovine Serum\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 1;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #F4F6F7; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eGender origin\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #FDFEFE; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eMale (XY) bovine fetuses only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 2;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #D6EAF8; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eSterile filtration\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #EBF5FB; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003e0.2 µm – SAL 10⁻⁶\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 3;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #F4F6F7; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eEndotoxin\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #FDFEFE; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eTested (lot-specific values on CoA)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 4;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #D6EAF8; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eMycoplasma\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #EBF5FB; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eTested negative\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 5;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #F4F6F7; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eHemoglobin\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #FDFEFE; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eTested – low\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 6;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #D6EAF8; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eTotal protein\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #EBF5FB; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eTested – typical 35–45 g\/l\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 7;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #F4F6F7; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eTestosterone\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #FDFEFE; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eHigher than mixed-gender FBS – lot values on CoA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 8;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #D6EAF8; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eHeat inactivation\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #EBF5FB; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eAvailable on request (56°C, 30 min)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 9;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #F4F6F7; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eAvailable volumes\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #FDFEFE; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003e100 ml | 500 ml\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 10;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #D6EAF8; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eStorage\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #EBF5FB; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003e–20°C (long-term) | 2–8°C (short-term, up to 1 month)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 11; mso-yfti-lastrow: yes;\"\u003e\n\u003ctd width=\"213\" valign=\"top\" style=\"width: 160.0pt; border: solid #DDDDDD 1.0pt; border-top: none; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #F4F6F7; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eDocumentation\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"388\" valign=\"top\" style=\"width: 291.3pt; border-top: none; border-left: none; border-bottom: solid #DDDDDD 1.0pt; border-right: solid #DDDDDD 1.0pt; mso-border-top-alt: solid #DDDDDD .25pt; mso-border-left-alt: solid #DDDDDD .25pt; mso-border-alt: solid #DDDDDD .25pt; background: #FDFEFE; padding: 4.0pt 6.0pt 4.0pt 6.0pt;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 10.0pt; color: black; mso-color-alt: windowtext;\"\u003eCoA with gender verification, CoO, MSDS on request\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eStorage \u0026amp; Handling\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eStore at –20°C upon receipt – long-term stability up to 3 years\u003c\/li\u003e\n\u003cli\u003eThaw at 37°C in a water bath – do not exceed 37°C\u003c\/li\u003e\n\u003cli\u003eAliquot after thawing – max. 3 freeze-thaw cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003c!-- [if !supportLists]--\u003eAfter thawing, store at 2–8°C and use within 1 month\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin: 10.0pt 0cm 4.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.5pt; color: #2c3e50;\"\u003eHow much more testosterone does FBS Male contain vs. standard FBS?\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003ePublished data on bovine gender-specific serum shows that male bovine serum contains significantly higher testosterone (insulin and testosterone are significantly higher in male serum per peer-reviewed analysis of gender-specific bovine serum). Exact lot-specific values are available on our Certificate of Analysis. Contact us for representative lot data before ordering.\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin: 10.0pt 0cm 4.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.5pt; color: #2c3e50;\"\u003eIs FBS Male the right choice for prostate cancer cell lines?\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003eYes – for androgen receptor (AR)-positive prostate cancer cell lines like LNCaP, FBS Male provides a physiologically relevant androgenic baseline without the undefined hormonal variability of mixed-gender FBS. For AR-negative experiments or steroid-free conditions, charcoal-stripped FBS is the appropriate alternative.\u003c\/p\u003e\n\u003ch3 class=\"MsoNormal\" style=\"margin: 10.0pt 0cm 4.0pt 0cm;\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.5pt; color: #2c3e50;\"\u003eDoes NIH recommend using gender-defined serum?\u003c\/span\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003eThe NIH Policy on Sex as a Biological Variable (SABV) mandates that researchers account for sex in study design, including cell culture. Using gender-defined serum is one practical way to address this requirement, particularly in cardiovascular, muscle biology, and hormone-sensitive cancer research contexts.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin: 4.0pt 0cm 4.0pt 0cm;\"\u003e \u003c\/p\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e","brand":"SeamlessBio","offers":[{"title":"50mL","offer_id":57909611463037,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":false},{"title":"100mL","offer_id":57909611495805,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":false},{"title":"500mL","offer_id":57909611528573,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/3338\/5853\/files\/FBSMale_USorigin_500mL.png?v=1776025758","url":"https:\/\/shop.seamlessbio.de\/en\/products\/fbs-male","provider":"SeamlessBio","version":"1.0","type":"link"}