Gold-Top Blood Collection Tubes: U.S. Manufacturers, Suppliers, and Buying Guide

Summary

• Gold-top blood collection tubes are usually serum separator tubes, commonly called SST or SST II tubes, containing a Clot Activator and polymer gel for separating serum from clotted blood.
• In the United States, buyers can obtain gold-top tubes from manufacturers and distributors including BD, Greiner Bio-One, Cardinal Health, McKesson, Medline, Thermo Fisher Scientific, Avantor, Fisher Scientific, Henry Schein, and regional laboratory-supply companies.
• The correct tube depends on the laboratory’s test menu, analyzer requirements, specimen volume, tube size, expiration date, regulatory documentation, and compatibility with the purchasing organization’s collection and shipping procedures.

Gold-top blood collection tubes are among the most commonly purchased supplies in clinical laboratories, physician offices, hospitals, urgent-care centers, outpatient draw stations, and Mobile Phlebotomy services in the United States. They are generally used to collect blood for serum-based chemistry, immunology, endocrinology, serology, therapeutic-drug monitoring, and other laboratory tests.

The term “gold-top tube” can create confusion because tube colors are not completely standardized across manufacturers. In most U.S. purchasing environments, a gold-top tube refers to a serum separator tube, or SST. These tubes normally contain a Clot Activator and a polymer gel. After the blood clots and the tube is centrifuged, the gel forms a barrier between the serum and the clot.

Several major manufacturers produce these tubes, while a much larger number of distributors sell them. The most practical purchasing decision is therefore not simply identifying a company that lists gold-top tubes. Buyers should confirm the exact product, tube dimensions, additive, draw volume, sterility status, regulatory documentation, and test compatibility before placing an order.

What Is a Gold-Top Blood Collection Tube?

A gold-top blood collection tube is typically designed to produce serum rather than plasma. The tube contains a Clot Activator that promotes clot formation and a gel separator that creates a physical barrier after centrifugation. The resulting serum is used for many routine and specialized laboratory tests.

Gold-top tubes are often described by several interchangeable terms:

1. Serum separator tube, or SST.
2. SST II tube.
3. Serum gel tube.
4. Gold serum tube.
5. Gold-top vacutainer.
6. Tiger-top tube, when the tube has a gold-and-red patterned or “tiger” stopper.

Although these terms are frequently used in the same purchasing conversation, they do not always describe identical products. A traditional red-top tube may contain no gel and may or may not contain a Clot Activator. A gold-top SST usually includes both Clot Activator and gel. A tiger-top tube may have a similar functional purpose but a different stopper design, manufacturer, or internal additive formulation.

Tube color should therefore be treated as a visual identification aid rather than the sole product specification. The laboratory should verify the manufacturer’s instructions for use and the requirements of the performing laboratory before substituting one tube for another.

Major U.S. Manufacturers and Suppliers

BD

BD, formerly known as Becton, Dickinson and Company, is one of the best-known manufacturers of evacuated blood collection systems in the United States. Its Vacutainer product family includes gold-top serum separator tubes and SST II tubes in multiple sizes and configurations.

BD tubes are widely used in hospitals, reference laboratories, physician offices, and large integrated health systems. They are commonly available in sizes such as 3.5 mL, 5 mL, 7 mL, and 8.5 mL, although the specific sizes and configurations depend on the product line. Buyers may also encounter tubes designed for pediatric or low-volume collection.

BD products are sold through direct institutional contracts and through medical-supply distributors. Common U.S. purchasing channels include national distributors, hospital group purchasing organizations, laboratory-supply companies, and authorized resellers. When comparing a BD tube with another supplier’s product, buyers should check whether the laboratory’s analyzers and validated procedures have been approved for that specific tube.

Greiner Bio-One

Greiner Bio-One manufactures VACUETTE blood collection products, including serum separator tubes with gold or gold-and-red stopper configurations. The company is a major supplier in the global specimen-collection market and has an established presence in the United States.

Greiner products are commonly sold through laboratory distributors and national medical-supply companies. Depending on the product, VACUETTE tubes may be available in several draw volumes, dimensions, label formats, and packaging quantities. Some are intended for routine serum testing, while others may be designed for specific workflows or transport systems.

Greiner Bio-One tubes are particularly relevant for laboratories that use non-BD collection systems or that maintain multiple approved tube vendors. Before switching brands, the laboratory should evaluate gel performance, Clotting Time, centrifugation conditions, tube fill volume, and analyzer-specific requirements.

Cardinal Health

Cardinal Health is a major U.S. healthcare distributor and also offers a broad portfolio of laboratory and medical products. Depending on the purchasing agreement and market availability, customers may find gold-top serum separator tubes under national brand names, manufacturer brands, or private-label product lines distributed by Cardinal Health.

Cardinal Health is often used by hospitals, physician networks, outpatient laboratories, and health systems that want consolidated purchasing. The advantage of a large distributor is that tubes can be ordered with other frequently used items, such as needles, holders, tourniquets, alcohol prep pads, gauze, specimen bags, labels, and transport containers.

Customers should review the product description carefully because distributor catalogs may contain several visually similar tube types. The important information includes the additive, nominal draw volume, tube material, closure type, expiration date, and catalog or manufacturer reference number.

McKesson

McKesson is another major U.S. healthcare distributor that supplies blood collection tubes to clinical facilities and office-based practices. Its catalog may include gold-top SST tubes from recognized manufacturers as well as private-label or contracted products.

McKesson’s purchasing platform can be useful for smaller practices that do not have the volume necessary for a direct manufacturer contract. A buyer may be able to purchase tubes along with other clinical supplies under an existing account. Availability, case quantity, minimum order requirements, and shipping policies vary by customer location and contract.

When ordering through a distributor, buyers should avoid relying only on a search result that says “gold-top.” The product page or product documentation should confirm whether the tube contains gel and Clot Activator, whether it is sterile, and whether the tube is intended for serum testing.

Medline

Medline Industries supplies a wide range of clinical, laboratory, and phlebotomy products in the United States. Its product catalog may include gold-top serum separator tubes and related blood collection accessories.

Medline is a common purchasing option for physician offices, ambulatory surgery centers, clinics, long-term-care organizations, and hospitals. The company’s distribution model can simplify recurring orders, especially for facilities that want one vendor for collection tubes, sharps containers, personal protective equipment, exam-room supplies, and specimen-transport products.

Facilities purchasing Medline or other private-label tubes should compare them against their current tube system rather than assuming that all gold-top products perform identically. Some laboratory information systems and internal inventory controls are configured around a specific manufacturer, product number, or tube size.

Thermo Fisher Scientific and Fisher Scientific

Thermo Fisher Scientific manufactures and distributes laboratory products through several channels. Fisher Scientific, its laboratory-supply distribution business, lists blood collection tubes from multiple manufacturers, including serum separator tubes used in clinical and research settings.

Fisher Scientific is particularly useful for universities, research hospitals, independent laboratories, and biotechnology organizations that purchase both clinical collection supplies and general laboratory equipment. Buyers may find BD, Greiner Bio-One, and other brands through the same procurement system.

Purchasing departments should distinguish between products intended for regulated clinical diagnostics and those intended only for research use. A tube that is suitable for research sample processing may not be acceptable for a CLIA-regulated patient-testing Workflow without appropriate validation and documentation.

Avantor and VWR

Avantor supplies laboratory and healthcare products through its VWR distribution business. U.S. customers may find serum separator tubes and other phlebotomy products in the VWR catalog, including products from major blood-collection manufacturers.

Avantor and VWR are often used by hospital laboratories, academic medical centers, pharmaceutical companies, contract research organizations, and government facilities. Their purchasing systems may support institutional approvals, standing orders, electronic procurement, and consolidated invoicing.

As with other distributors, product availability may differ by region, contract, and inventory status. A buyer should confirm whether the advertised tube is gold-top, gold-and-red tiger-top, or another serum tube with a different additive configuration.

Henry Schein

Henry Schein is a major distributor serving dental offices, medical practices, outpatient clinics, and other Healthcare Providers. Its product range can include blood collection tubes and related phlebotomy supplies, either under manufacturer brands or distributor-supplied product lines.

Henry Schein may be convenient for physician practices that already purchase examination gloves, needles, syringes, diagnostic products, and infection-control supplies through the company. Practices should check whether the tubes are sold by the case, whether the stated volume is the nominal draw volume, and whether refrigerated or temperature-controlled shipping is required.

Regional laboratory and medical-supply distributors

Many U.S. laboratories purchase gold-top tubes from regional suppliers rather than directly from a national company. These businesses may specialize in phlebotomy, pathology, laboratory diagnostics, or physician-office supplies.

Regional distributors can provide important advantages, including shorter delivery times, personal account support, local inventory, emergency delivery, and assistance with recurring orders. However, smaller distributors may carry a narrower selection or may obtain products from multiple manufacturers. Buyers should request the manufacturer name, catalog number, lot information, and documentation before approving a substitute.

Where Can U.S. Buyers Purchase Gold-Top Tubes?

The U.S. market includes several purchasing routes. The best choice depends on the facility’s annual usage, contract structure, delivery requirements, and quality-system controls.

1. Direct manufacturer purchasing: Large hospitals and reference laboratories may negotiate directly with BD, Greiner Bio-One, or another manufacturer. Direct contracts can provide volume pricing, product standardization, and technical support.
2. National medical distributors: Companies such as McKesson, Cardinal Health, and Medline can combine blood tubes with a broad range of clinical supplies.
3. Laboratory distributors: Fisher Scientific, VWR, and similar suppliers are commonly used by laboratories, universities, hospitals, and research institutions.
4. Medical-office distributors: Physician practices may use Henry Schein and comparable vendors for routine phlebotomy products.
5. Group purchasing organizations: Hospitals and health systems may obtain contracted prices through group purchasing arrangements.
6. Local suppliers: Regional laboratory vendors can be useful when rapid delivery or local account support is important.

Online marketplaces may also display gold-top tubes, but purchasers should exercise caution. The seller’s identity, storage conditions, expiration date, lot traceability, return policy, and product authenticity may be less clear than with an established medical or laboratory distributor.

Important Product Specifications

Tube size and draw volume

Gold-top tubes are sold in different sizes. Common adult sizes include 13-by-75-millimeter and 13-by-100-millimeter formats, with nominal draw volumes often ranging from approximately 3.5 mL to 10 mL. Smaller tubes may be used for pediatric, geriatric, oncology, or difficult-draw patients.

The correct volume depends on the test requirements and the performing laboratory’s minimum-volume policy. An insufficient specimen can result in a rejected sample, a request for recollection, delayed treatment, and additional patient discomfort.

Clot Activator and gel

Most gold-top SST tubes contain a Clot Activator and Separator Gel. The Clot Activator helps the specimen clot, while the gel forms a barrier between serum and cells during centrifugation.

Not every gold-colored tube has the same gel formulation or performance. Some laboratories may have specific instructions for Clotting Time, centrifuge speed, centrifuge duration, and storage. These conditions can influence hemolysis, fibrin formation, gel-barrier quality, and analyte stability.

Material and closure

Blood collection tubes may be manufactured from glass or plastic, although plastic tubes are common in modern clinical collection systems. The closure may be made from different elastomer materials and may have distinct penetration characteristics.

Tube material affects breakage risk, transport safety, centrifugation procedures, and compatibility with automated systems. Facilities should confirm that the selected tube works with their existing tube holders, centrifuges, specimen processors, and pneumatic-tube systems.

Sterility and intended use

Some tubes are labeled sterile, while others are intended for routine blood collection without a sterility claim. The required specification depends on the clinical application and the facility’s infection-prevention policy.

Products labeled for in vitro diagnostic use may have different documentation from products labeled for research use only. A clinical laboratory should not assume that a research-labeled tube is acceptable for patient testing.

Regulatory and Quality Considerations

In the United States, patient testing laboratories are generally subject to the Clinical Laboratory Improvement Amendments, commonly called CLIA. CLIA focuses on the quality of testing processes, including specimen collection, handling, testing, and reporting. Tube selection is part of the preanalytical process and should be controlled by laboratory procedures.

The Food and Drug Administration regulates many medical devices, including blood collection systems. Buyers should obtain appropriate manufacturer documentation and verify that the product is intended for the required clinical use.

Accrediting organizations and laboratory quality programs also emphasize Specimen Integrity. The College of American Pathologists, The Joint Commission, and state laboratory authorities may review collection and specimen-handling procedures during inspections or assessments.

Before changing brands, laboratories commonly evaluate the following:

1. Compatibility with the laboratory’s analyzers and testing methods.
2. Comparison of results with the currently approved tube.
3. Clotting performance and required Clotting Time.
4. Gel-barrier formation after centrifugation.
5. Hemolysis, lipemia, and specimen-rejection rates.
6. Tube dimensions and compatibility with automation.
7. Patient identification and label adhesion.
8. Lot-to-lot consistency.
9. Storage, shipping, and expiration requirements.
10. Manufacturer instructions and technical support.

How Much Do Gold-Top Tubes Cost?

Prices vary considerably based on manufacturer, tube volume, packaging, quantity, contract status, shipping, and market conditions. In general, gold-top tubes are often sold in boxes containing approximately 50 or 100 tubes and cases containing several hundred tubes. The per-tube price may be substantially lower for hospitals or laboratories purchasing full cases or entering annual contracts.

Small practices may pay more per tube because they purchase lower quantities. A low advertised unit price may also exclude shipping, handling, hazardous-material fees, or minimum-order charges. Purchasers should calculate the total delivered cost rather than comparing only the listed price.

Other cost factors include expiration-related waste, emergency shipments, rejected specimens, recollection labor, and storage requirements. A less expensive tube that increases Specimen Rejection may cost more overall than a higher-priced tube with reliable performance.

Inventory Planning and Supply Security

Blood collection tubes are consumable products, and demand can change quickly during influenza seasons, public-health emergencies, respiratory-virus surges, staffing changes, or the opening of new outpatient services. The Covid-19 pandemic demonstrated how vulnerable healthcare supply chains can become when demand rises rapidly and manufacturing or transportation capacity is constrained.

Facilities should establish a minimum and maximum inventory level based on historical usage, lead time, expiration dates, and emergency demand. A useful inventory program may include:

1. Tracking average weekly and monthly consumption.
2. Maintaining safety stock for unexpected demand.
3. Using first-expire, first-out inventory rotation.
4. Monitoring lot numbers and expiration dates.
5. Maintaining an approved substitute list.
6. Reviewing supplier fill rates and back-order history.
7. Keeping separate inventory records for each tube size and additive.
8. Auditing damaged, expired, or recalled products.

Overstocking can also create problems. Tubes have expiration dates, and unused inventory can become unusable if demand falls or a laboratory changes its test menu. A purchasing manager should balance supply security with realistic consumption forecasts.

Common Purchasing Mistakes

Buying by color alone

The most common mistake is ordering “gold tubes” without reviewing the complete product description. A gold-top SST, a gold-and-red tiger-top tube, and a specialized serum tube may not have identical additives or performance characteristics.

Ignoring the required fill volume

Ordering a 10-mL tube when the collection site routinely obtains only 3 mL can lead to underfilled specimens and poor Workflow. Conversely, a small tube may not produce enough serum for a test panel or send-out requirement.

Substituting without validation

Even when two tubes appear equivalent, a laboratory should follow its change-control process before using a new product for patient testing. The performing laboratory may also have specimen-acceptance requirements that must be confirmed in advance.

Failing to check expiration and storage

Medical facilities sometimes focus on unit price and overlook the age of the stock. Tubes should be inspected on receipt and stored according to the manufacturer’s instructions. Damaged packaging, unusual stopper conditions, or questionable labeling should be investigated before use.

Questions to Ask a Supplier

A purchasing department can reduce risk by sending suppliers a standard product questionnaire. Important questions include:

1. Is the product a serum separator tube with Clot Activator and gel?
2. What is the manufacturer and exact catalog number?
3. What are the tube dimensions and nominal draw volume?
4. Is the tube plastic or glass?
5. Is the tube sterile or nonsterile?
6. What is the minimum remaining shelf life at delivery?
7. What case and box quantities are available?
8. Can the supplier provide lot traceability?
9. What are the shipping and storage requirements?
10. Is technical documentation available for clinical validation?
11. Are standing orders or volume discounts available?
12. What is the procedure for damaged, short-dated, or recalled products?

Choosing the Best Supplier

For a large hospital or reference laboratory, a direct agreement with a major manufacturer or national distributor may provide the best combination of price, availability, and technical support. For a small physician practice, a medical distributor that already supplies needles, gloves, specimen bags, and other products may be more efficient.

Research institutions may prefer Fisher Scientific, VWR, or another laboratory distributor because those suppliers can combine clinical collection products with research consumables. A Mobile Phlebotomy service may prioritize compact case quantities, rapid shipping, and tubes that fit its portable centrifuge and specimen-transport system.

The best supplier is not necessarily the one with the lowest listed price. Reliability, product authenticity, documentation, delivery performance, expiration dating, and compatibility with the laboratory’s existing Workflow are equally important.

Final Purchasing Guidance

In the United States, gold-top blood collection tubes are available from leading manufacturers such as BD and Greiner Bio-One and through large distributors such as Cardinal Health, McKesson, Medline, Fisher Scientific, Avantor, VWR, and Henry Schein. Regional laboratory-supply companies also provide an important source, particularly for smaller facilities and customers that need local service.

Most gold-top tubes are serum separator tubes containing a Clot Activator and gel, but color alone does not guarantee identical performance. Before purchasing, confirm the exact product number, tube size, additive, intended use, regulatory labeling, expiration date, and compatibility with the performing laboratory.

A well-managed purchasing program combines supplier comparison with laboratory validation, inventory control, and quality monitoring. By evaluating both clinical requirements and total cost of ownership, U.S. healthcare organizations can select gold-top tubes that support reliable specimen collection while reducing recollections, waste, delays, and supply interruptions.

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