Serum Blood Collection Tube Brands in the United States: A Complete Buyer’s Guide

Summary

• Major serum blood collection tube brands available in the United States include BD Vacutainer, Greiner Bio-One VACUETTE, SARSTEDT S-Monovette, Cardinal Health Monoject, McKesson Medical-Surgical, Fisherbrand, and selected regional or private-label suppliers.
• Serum tubes are commonly sold as red-top tubes, gold-top serum separator tubes, and tiger-top or marbled-gold SST tubes; additives, tube sizes, Clotting Time, gel composition, and testing compatibility vary by product.
• Purchasers should evaluate FDA status, laboratory validation, CLSI-aligned procedures, supply continuity, packaging, expiration dating, pricing, and compatibility with their instruments before selecting a brand.

Serum blood collection tubes are among the most frequently purchased consumables in hospitals, physician offices, independent laboratories, urgent-care centers, blood-draw stations, research facilities, and Mobile Phlebotomy services in the United States. They are used when a laboratory needs serum rather than plasma for chemistry, immunology, serology, endocrinology, Toxicology, Therapeutic Drug Monitoring, or selected molecular and specialty tests.

The U.S. market includes several nationally recognized manufacturers, laboratory distributors, medical-supply companies, and private-label brands. The most visible manufacturers include BD, Greiner Bio-One, SARSTEDT, Cardinal Health, and Terumo in selected product categories. In addition, companies such as McKesson and Fisher Scientific sell house-brand or distributor-branded tubes, while regional laboratory suppliers may offer compatible products from smaller manufacturers.

Choosing a tube is not simply a matter of selecting a gold, red, or tiger-colored cap. Tube composition, Clot Activator, Separator Gel, dimensions, draw volume, sterility, closure design, centrifugation requirements, and analyzer compatibility can affect specimen quality. A purchasing decision should therefore combine product availability and price with laboratory validation, regulatory review, and the requirements of the testing menu.

What Is a Serum Blood Collection Tube?

A serum tube is designed to collect whole blood, allow the blood to clot, and then separate the liquid serum from the clot and cellular components through centrifugation. Serum does not contain fibrinogen because fibrinogen is consumed during clot formation. Plasma, by contrast, is obtained from anticoagulated blood and generally retains fibrinogen.

Serum tubes may be manufactured with no additive, a Clot Activator, or a Clot Activator combined with a polymer Separator Gel. Plain red-top tubes generally contain no Anticoagulant and may be glass or plastic, although plastic versions commonly contain a Clot Activator. Gold-top and tiger-top tubes generally contain a Clot Activator and Separator Gel. The exact formulation differs by manufacturer and product line.

Common uses include routine metabolic panels, liver-function testing, lipid testing, thyroid testing, many hormone assays, antibody testing, infectious-disease serology, and selected therapeutic drug measurements. However, not every test that uses serum can be collected in every serum tube. Some assays specify a plain tube, a gel separator tube, a low-binding tube, a trace-element tube, or a tube with a particular Clot Activator.

Leading Serum Tube Brands in the United States

BD Vacutainer

BD Vacutainer is one of the most widely recognized blood collection brands in the United States. Becton, Dickinson and Company offers a broad range of evacuated blood collection tubes, including red-top serum tubes and serum separator tubes commonly identified by gold or other manufacturer-specific cap colors.

BD products are used across acute-care hospitals, national laboratory networks, outpatient draw centers, and physician practices. The brand’s broad distribution is a purchasing advantage because many U.S. medical distributors, group purchasing organizations, and laboratory suppliers carry BD products. Standard tube sizes often include pediatric and adult formats, with several draw volumes available depending on the tube type.

BD serum separator products may include Clot Activator and polymer gel. Buyers should examine the exact catalog description rather than relying only on the phrase “gold-top tube.” Some BD tubes are intended for serum chemistry or immunology testing, while specialty versions may have different materials or performance characteristics. Product inserts should be reviewed for Clotting Time, centrifugation instructions, storage conditions, and limitations.

For organizations already using BD needles, holders, transfer devices, and automation systems, a single-brand purchasing strategy can simplify staff training and reduce variation. The potential disadvantages are higher unit pricing in some contracts and the need to compare availability during periods of supply constraint.

Greiner Bio-One VACUETTE

Greiner Bio-One’s VACUETTE line is another major brand available to U.S. laboratories and Healthcare Providers. The portfolio includes serum tubes, serum separator tubes, pediatric tubes, specialty tubes, safety products, and accessories.

VACUETTE serum tubes are commonly available with red, gold, or other color-coded closures depending on the additive and product specification. Greiner Bio-One uses its own product naming and catalog system, so purchasers should confirm whether a tube contains a Clot Activator, Separator Gel, or another additive. Color conventions are helpful but should never replace verification of the catalog number and package label.

Greiner Bio-One products are distributed through national medical-supply channels and laboratory distributors. They may be particularly attractive to laboratories seeking a qualified alternative to BD or looking to diversify supply. Before conversion, the laboratory should conduct a documented comparison for clot formation, serum yield, hemolysis rates, gel performance, analyte recovery, and analyzer compatibility.

VACUETTE tubes are used in hospitals, outpatient laboratories, research settings, and blood collection services. Availability can vary by tube size, region, contract, and distributor inventory, so buyers should obtain current lead-time information for the specific product rather than assuming that all VACUETTE formats are stocked equally.

SARSTEDT S-Monovette

SARSTEDT is a global manufacturer with products available in the United States, including the S-Monovette blood collection system. Unlike conventional evacuated tubes, the S-Monovette system can support an aspiration or vacuum collection method, depending on the configuration and user procedure.

SARSTEDT offers serum tubes and serum separator tubes for clinical laboratory use. The S-Monovette design may appeal to facilities that value flexibility in blood collection, pediatric draws, Difficult Veins, or systems designed around controlled aspiration. The product line also includes matching needles, holders, adapters, and other collection components.

Because the S-Monovette system differs from standard evacuated-tube workflows, a facility should assess staff training, holder compatibility, collection technique, specimen transport, and integration with existing phlebotomy procedures. A tube that performs well analytically may still be impractical if the collection system is not compatible with current equipment or if staff have not been trained.

SARSTEDT products can be purchased through laboratory and medical-supply distributors in the United States. Stock levels may be more variable than those of the largest high-volume brands, particularly for less common sizes or specialty configurations. Contract buyers should request information on domestic inventory, replenishment schedules, and substitute products.

Cardinal Health Monoject and Related Products

Cardinal Health distributes a broad range of medical and laboratory products, including blood collection supplies sold under the Monoject name and other product categories. Depending on the catalog and market segment, buyers may find serum tubes, separator tubes, needles, holders, transfer devices, and related phlebotomy products.

Cardinal Health is a significant U.S. healthcare distributor, which can make its products convenient for organizations that already purchase gloves, syringes, gauze, specimen bags, and other supplies through Cardinal contracts. Availability and branding can vary by product, facility account, and distribution center.

Purchasers should distinguish between a distributor’s role and the actual manufacturer of a tube. The package label, manufacturer identification, regulatory information, and instructions for use should be retained in the purchasing and quality records. If a distributor offers a lower-cost private-label product, the laboratory should verify that it has the same intended use and has been evaluated for the relevant assays.

McKesson Medical-Surgical

McKesson Medical-Surgical supplies hospitals, physician practices, laboratories, long-term-care organizations, and other healthcare facilities. Its catalog may include serum tubes from several manufacturers as well as private-label or house-brand products.

McKesson can be useful for price comparison and consolidated purchasing. A clinic may be able to order serum tubes alongside exam gloves, alcohol prep pads, sharps containers, specimen transport bags, and other supplies. This can reduce administrative work and, depending on the contract, lower freight or handling costs.

Because distributor catalogs may contain multiple visually similar products, the buyer should compare exact specifications. Important details include tube material, cap color, additive, gel type, nominal draw volume, dimensions, expiration date, sterility, packaging quantity, and intended testing applications. A “serum separator tube” from one manufacturer should not automatically be treated as identical to a tube with the same general description from another manufacturer.

Fisherbrand and Laboratory-Distribution Brands

Fisherbrand products are commonly purchased by research laboratories, universities, hospitals, diagnostic laboratories, and biotechnology companies through laboratory supply channels. Fisher Scientific also distributes products from multiple manufacturers, so its catalog can provide access to standard serum tubes, microtubes, specialty tubes, and compatible collection accessories.

Fisherbrand serum tubes may be suitable for research or routine specimen collection when the product’s intended use and performance documentation meet the organization’s requirements. Clinical laboratories should pay close attention to whether a product is marketed for in vitro diagnostic use, laboratory research use only, or another category. A tube appropriate for a research protocol may not be acceptable for a regulated clinical testing Workflow without additional evaluation.

Other laboratory distributors may offer brands such as Globe Scientific, Labcon, and smaller regional manufacturers. These products may be useful for research, education, veterinary work, or selected clinical applications. The level of documentation, lot-to-lot support, and local technical service can vary considerably, making vendor qualification important.

Common Serum Tube Types to Compare

Red-Top Serum Tubes

Red-top tubes are traditionally associated with serum collection. Some plain red-top tubes contain no additive, while plastic versions may contain a Clot Activator. Glass tubes can promote clotting through surface contact, whereas plastic tubes often require a Clot Activator to support timely clot formation.

Red-top tubes may be selected for tests that specify serum without Separator Gel. They can also be useful when gel interference is a concern or when the laboratory’s procedure requires serum to be transferred into another container. However, the absence of gel means that the serum must be carefully separated from the clot after centrifugation.

Gold-Top Serum Separator Tubes

Gold-top tubes commonly contain a Clot Activator and Separator Gel. After clotting and centrifugation, the gel forms a barrier between serum and blood cells. This can simplify specimen handling, reduce the likelihood of cellular contamination, and support transport of separated serum.

Gold-top tubes are frequently used for routine chemistry and immunology testing. Their performance depends on correct fill volume, adequate Clotting Time, centrifuge settings, temperature, and handling. Inadequate clotting can result in fibrin strands, analyzer obstruction, or inaccurate results. Excessive delay before centrifugation can allow cellular metabolism to alter some analytes.

Tiger-Top or Marbled-Top Tubes

Tiger-top tubes are often serum separator tubes with a mottled or marbled appearance on the closure. The term is used differently by suppliers, and the cap design alone does not identify the additive. Some tiger-top tubes contain Clot Activator and gel, while others may have a specific manufacturer formulation.

When ordering tiger-top tubes, buyers should use the manufacturer’s catalog number and product description. A laboratory should not substitute a gold-top, tiger-top, or red-top product solely because the tube appears to perform similarly. Validation is especially important for assays sensitive to specimen contact materials or separator-gel characteristics.

Pediatric and Small-Volume Serum Tubes

Pediatric tubes are available from major manufacturers in smaller draw volumes. They are designed to reduce blood loss during repeated testing, particularly in children, older adults, Oncology Patients, intensive-care patients, and individuals with difficult access.

Small-volume tubes can require different centrifugation instructions and may not be validated for every assay. A laboratory should confirm minimum specimen volume, dead volume, instrument aspiration requirements, and whether the Separator Gel forms a reliable barrier at the smaller volume. The use of pediatric tubes should be guided by test-specific instructions rather than convenience alone.

Regulatory and Quality Considerations

In the United States, blood collection tubes used for clinical testing fall within a regulated medical-device environment. Buyers should review the manufacturer’s regulatory information and intended use. Depending on the specific product, labeling may identify an in vitro diagnostic use, a general laboratory use, or another classification.

The U.S. Food and Drug Administration regulates medical devices, including many specimen-collection products. Clinical laboratories operating under the Clinical Laboratory Improvement Amendments must also maintain procedures that support accurate and reliable testing. Accreditation organizations and state requirements may impose additional expectations for specimen collection, validation, Quality Control, and documentation.

The Clinical and Laboratory Standards Institute publishes widely used recommendations for blood collection, specimen handling, tube selection, and order of draw. These recommendations are not a substitute for the manufacturer’s instructions, but they provide an important framework for developing phlebotomy procedures.

Occupational safety is another consideration. The Occupational Safety and Health Administration’s bloodborne-pathogen requirements affect employer procedures for exposure control, personal protective equipment, labeling, training, and sharps safety. A serum tube purchase should therefore be considered as part of a complete collection system that includes safety needles, tube holders, transport containers, and sharps disposal.

How to Compare Brands Before Purchasing

1. Confirm the exact tube type. Identify whether the laboratory needs plain serum, Clot Activator serum, serum Separator Gel, pediatric serum, or a specialty tube. Do not order based only on cap color.

2. Review the intended use. Determine whether the product is labeled for clinical in vitro diagnostic use or is intended only for research. This distinction can affect whether it is appropriate for patient testing.

3. Check the draw volume. Compare nominal volume with the minimum volume required by the laboratory’s analyzers and assays. Underfilled tubes may change the blood-to-additive relationship or reduce usable serum volume.

4. Assess clotting and centrifugation instructions. Record the required Clotting Time, centrifuge speed or relative centrifugal force, duration, temperature, and separation procedure.

5. Evaluate analytical compatibility. Review assay instructions and, when changing brands, conduct a comparison study for tests that may be affected by gel, plastic, Clot Activator, or tube material.

6. Compare packaging and shelf life. A lower unit price may not be economical if the product is supplied in large cases that expire before use. Check package quantity, lot information, expiration dating, and storage requirements.

7. Measure supplier reliability. Ask about fill rates, average lead times, back-order procedures, allocation policies, domestic inventory, and available substitutes.

8. Review total cost. Include freight, minimum-order requirements, storage, disposal, staff training, conversion validation, and potential recollection costs.

Pricing, Supply, and Purchasing Trends

Disposable medical supplies represent a recurring operating expense. The U.S. healthcare system performs billions of laboratory tests each year, and blood collection tubes account for a substantial volume of routine consumable use. Exact demand varies by facility, patient population, test mix, and whether the organization operates inpatient, outpatient, research, or reference-laboratory services.

Tube prices can vary significantly based on brand, size, additive, packaging, contract tier, and order quantity. A hospital purchasing through a national group purchasing organization may receive pricing that is not available to a small physician practice. Conversely, a small clinic may reduce total cost by using a distributor that combines shipments and avoids multiple minimum-order charges.

Supply interruptions during and after the Covid-19 pandemic demonstrated the importance of dual sourcing and inventory visibility. Medical-supply disruptions have affected plastics, resins, packaging, transportation, labor, and manufacturing capacity. Although availability changes over time, a facility that depends on one tube brand without an approved alternative may face unnecessary operational risk.

Maintaining a reasonable safety stock can protect against short-term delivery delays, but excessive inventory increases the risk of expiration and ties up working capital. A practical inventory policy should consider average weekly use, supplier lead time, emergency demand, expiration dating, and the time required to validate an alternative product.

Brand Conversion and Laboratory Validation

Switching from one serum tube brand to another should be managed as a controlled change. The laboratory should identify all affected departments, analyzers, assays, collection sites, and transport workflows. The purchasing department should not introduce a replacement tube without notifying the laboratory director or designated quality manager.

Validation may include visual assessment of clot formation, serum volume, hemolysis, gel barrier integrity, fibrin, tube leakage, label adhesion, centrifuge performance, and specimen stability. Analytical comparisons may be needed for representative chemistry, immunoassay, therapeutic drug, and specialty tests.

The extent of testing should reflect risk. A facility may need a more extensive evaluation for a high-volume chemistry tube used across multiple analyzers than for a tube used only for a limited research procedure. The laboratory should document acceptance criteria, sample numbers, results, deviations, approval, effective date, and staff communication.

Color changes can create substantial collection errors. If a new brand uses different cap shades or packaging, staff need clear education and updated collection guides. Electronic order-entry systems, preference cards, supply-room labels, and nursing procedures may also need revision.

Storage, Handling, and Specimen Integrity

Serum tubes should generally be stored according to the manufacturer’s temperature, humidity, and light-protection requirements. Boxes should remain sealed until needed, and stock should be rotated using a first-expiring, first-out method. Tubes should be protected from excessive heat, freezing, moisture, crushing, and prolonged exposure to direct sunlight.

Before collection, the phlebotomist should inspect tubes for cracks, damaged closures, unusual discoloration, expired dates, or evidence of contamination. Tubes should be labeled according to facility policy, usually at the patient’s side and immediately after collection.

After collection, serum tubes require adequate time for clot formation before centrifugation. The correct mixing procedure depends on the tube design. Vigorous shaking can increase hemolysis, while inadequate mixing may produce incomplete activation or inconsistent clotting. Staff should follow the manufacturer’s stated number of gentle inversions and should not treat serum tubes like Anticoagulant tubes.

Transport conditions also matter. Excessive delay, temperature extremes, mechanical agitation, or improper orientation can affect specimen quality. The laboratory’s test directory should specify when serum must be separated, refrigerated, frozen, protected from light, or delivered within a defined time window.

Which Brand Is Best for a U.S. Buyer?

There is no universal best brand for every U.S. purchaser. BD Vacutainer may be a strong choice for organizations that prioritize extensive distribution, broad system compatibility, and established brand familiarity. Greiner Bio-One VACUETTE may be attractive to facilities seeking a widely used alternative with a broad collection portfolio. SARSTEDT may suit organizations interested in the S-Monovette aspiration and vacuum system.

Cardinal Health, McKesson, and Fisherbrand can be convenient when a facility wants to consolidate purchasing through an existing distributor. Smaller or regional brands may offer competitive pricing, specialty configurations, or flexible service, but buyers should examine documentation, technical support, and continuity of supply carefully.

The most defensible decision is usually based on a weighted evaluation rather than unit price alone. The laboratory should consider specimen quality, test compatibility, collection safety, staff familiarity, supply reliability, total cost, and the vendor’s ability to support a validated product over time.

Practical Purchasing Checklist

1. List every serum tube currently used, including manufacturer, catalog number, size, additive, and cap color.

2. Separate routine serum tubes from specialty, pediatric, research, and send-out testing tubes.

3. Ask each supplier for current product specifications, instructions for use, regulatory information, case quantity, expiration expectations, and lead time.

4. Compare at least two qualified brands for critical high-volume tubes when feasible.

5. Confirm compatibility with existing needles, holders, centrifuges, automation lines, racks, pneumatic-tube systems, and analyzers.

6. Obtain laboratory approval before making a substitution.

7. Complete documented validation for new products or significant formulation changes.

8. Train phlebotomists and update order-of-draw references, collection manuals, and electronic supply records.

9. Monitor recollection rates, hemolysis, rejected specimens, clotting problems, leakage, and stock-outs after implementation.

10. Review the supplier and product at least annually or whenever there is a major change in volume, testing, regulation, or availability.

Conclusion

U.S. buyers can purchase serum blood collection tubes from several established brands, including BD Vacutainer, Greiner Bio-One VACUETTE, SARSTEDT S-Monovette, Cardinal Health, McKesson, Fisherbrand, and other qualified manufacturers and distributors. Red-top, gold-top, and tiger-top tubes are common choices, but their additives and performance characteristics are not interchangeable simply because their colors appear similar.

The right purchasing decision depends on the laboratory’s testing requirements, collection Workflow, equipment, regulatory obligations, supply strategy, and budget. A reliable brand with strong distribution is valuable, but it must still be matched to validated procedures and assay requirements. By comparing exact specifications, maintaining qualified alternatives, and monitoring specimen quality, U.S. healthcare organizations can purchase serum tubes that support both operational efficiency and dependable laboratory results.

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