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Recall · CPSC (US)

biOrigins Sodium Hydroxide Products Recalled Due to Failure to Meet Child-Resistant Packaging Requirement and Violation of FHSA Labeling Requirement; Imported by Madar Corporation; Sold Exclusively at Amazon.com (Recall Alert)

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Yes. This product was recalled on April 7, 2022 by CPSC (US). Reported hazard: The product contains sodium hydroxide which must be in child resistant packaging as required by the Poison Prevention Packaging Act (PPPA). The packaging of the products is not child resistant, posing a risk of chemical burns and irritation to the skin and eyes. In addition, the label on the product violates the Federal Hazardous Substances Act (FHSA) by omitting the mandatory information on the packaging. What to do: Consumers should immediately store the recalled product in a safe location out of reach of children and contact Madar Corporation for a full refund and a free warning label. Madar Corporation is contacting all purchasers directly.

Data updated July 21, 2026 · Source: official CPSC (US) recall data, checked every 30 minutes

biOrigins Sodium Hydroxide Products Recalled Due to Failure to Meet Child-Resistant Packaging Requirement and Violation of FHSA Labeling Requirement; Imported by Madar Corporation; Sold Exclusively at Amazon.com (Recall Alert)

What was recalled

The recall involves biOrigins-branded sodium hydroxide products. The product was sold in 500 grams and 1-kilogram zip-top, silver bags. The biOrigins logo and "LYE CAUSTIC SODA/SODIUM HYDROXIDE" are printed on the front of the bag on a white and blue label. The weight and batch number 4430708, 4423901, 4415403 or 4408414 appear on the back of the product.

The hazard

CPSC (US) flagged this product for the following risk:

The product contains sodium hydroxide which must be in child resistant packaging as required by the Poison Prevention Packaging Act (PPPA). The packaging of the products is not child resistant, posing a risk of chemical burns and irritation to the skin and eyes. In addition, the label on the product violates the Federal Hazardous Substances Act (FHSA) by omitting the mandatory information on the packaging.

What to do

If you own this product, here is the remedy CPSC (US) lists:

Consumers should immediately store the recalled product in a safe location out of reach of children and contact Madar Corporation for a full refund and a free warning label. Madar Corporation is contacting all purchasers directly.

Original recall notice: CPSC (US) →

Common questions

Is this product recalled?

Yes. This product was recalled on April 7, 2022 by CPSC (US). Reported hazard: The product contains sodium hydroxide which must be in child resistant packaging as required by the Poison Prevention Packaging Act (PPPA). The packaging of the products is not child resistant, posing a risk of chemical burns and irritation to the skin and eyes. In addition, the label on the product violates the Federal Hazardous Substances Act (FHSA) by omitting the mandatory information on the packaging.

What should I do if I have this product?

Consumers should immediately store the recalled product in a safe location out of reach of children and contact Madar Corporation for a full refund and a free warning label. Madar Corporation is contacting all purchasers directly.

Where can I read the official recall notice?

The original notice is published by CPSC (US) — linked directly from this page.

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