The Recall Desk
HighFDA (Devices)·Z-1264-2026·Announced 2026-02-11

Vivoo pH tests recalled over missing FDA premarket clearance

Changchun Wancheng Bio-Electron is recalling 500 units of the Vivoo pH Test because tests requiring a 510(k) were distributed before they could be legally marketed.

What this means for you

Real risk of harm even if no illness or injury has been reported yet. Stop using the product and follow the agency's guidance.

Our severity reasoning: Scored 3 under the risk-of-harm criterion: the record states the devices may give false or inaccurate results leading to inappropriate medical intervention, and no injuries are reported.

Plain-English summary

This recall by Changchun Wancheng Bio-Electron Co., Ltd. covers the Vivoo pH Test.

The record states that test strips and other tests, including for near-patient testing, that require a 510(k) were distributed before they could be legally marketed to U.S. customers, and that the devices may cause a false or inaccurate diagnostic result by a lay person and lead to inappropriate medical intervention.

The record lists 500 units under lot 2024013121, expiry 01/30/2026. The record gives distribution as US nationwide in the states of Texas, Georgia and California. The FDA has classified the action as Class II.

The enforcement record reports no injuries. Consumers should follow the seller's return instructions and speak to a clinician rather than relying on a result from an affected test.

The recalled product

Product
Vivoo pH Test
Affected units
500

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Lot numbers (1)

  • Name/Lot(Expiration): Vivoo pH Test/2024013121(01/30/2026)

Distribution

Distributed nationwide across the United States.

The notice also names 3 states specifically:

Part of a larger recall action

This product is one of 11 recalled by Changchun Wancheng Bio-Electron Co., Ltd. under a single FDA (Devices) recall action. The agency files each product separately, so the size of the action is not visible from this page alone.

See all 11 products in this recall →

Same manufacturer · Changchun Wancheng Bio-Electron Co., Ltd.

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Same hazard · premarket clearance

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