Maryland lab supplier shifts PhaseShield gel tube assembly to U.S.

Genzera LLC has moved PhaseShield gel tube assembly from China to Maryland and switched to U.S.-made gel after tariffs and shipping delays disrupted supply. The change, which took effect in September 2026, is meant to keep the product in stock and reduce exposure to customs and logistics risk.

Why it matters: - Genzera LLC’s shift brings more of its lab supply chain back to the United States. - The move is designed to reduce tariff exposure, customs delays and stockouts for laboratories that use PhaseShield™ gel tubes for phenol-chloroform nucleic acid purification. - The company says the change also improves quality control by keeping assembly and inspection in the same facility.

What happened: - Genzera moved assembly of PhaseShield™ gel tubes from China to its Gaithersburg, Md., facility. - The company now uses U.S.-made gel in the product. - The change took effect in September 2026. - Genzera now assembles and quality tests PhaseShield™ gel tubes directly in Maryland. - The empty microcentrifuge tubes are still manufactured overseas. - Genzera now buys those tubes from U.S. distributors that warehouse inventory domestically.

The details: - Before the shift, Genzera imported PhaseShield™ products from an overseas manufacturer. - Customers sometimes waited a month or longer for orders because of international supply chain instability. - Shipments selected for random customs inspection faced additional delays of one to three months. - At least one shipment carried tariffs worth more than 100% of the shipment’s value. - Since September, PhaseShield™ products have been continuously in stock. - Restocking now takes one to two days. - Domestic orders can be shipped within 24 hours. - Genzera can inspect products in the same facility where they are assembled. - For PhaseShield™ products, the company runs random-sample DNA and RNA purification experiments before release.

Between the lines: - The move is a hedge against a volatile trade environment and unpredictable border delays. - For a supplier serving laboratories, availability can matter as much as price. - Shorter lead times and domestic fulfillment may make the product easier for researchers to plan around.

What's next: - Genzera plans to keep PhaseShield™ products in stock from its Maryland base. - Zhen (Mason) Tao is available for interview on the supply chain change and tariff exposure for local lab suppliers. - The company’s test case may draw attention from other small lab suppliers weighing whether to localize more of their supply chains.