‘Defective’ Millie Moon Luxury Diapers Can Cause Leakage and Skin Reactions, Class Action Lawsuit Alleges

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A proposed class action lawsuit alleges that Millie Moon Luxury Diapers are not suitable for their intended purpose or safe for prolonged contact with infants’ delicate skin due to an apparent defect that can cause leakage and/or severe skin reactions.

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The 34-page lawsuit says that although defendants Zuru LLC and Zuru Consumer Brands LLC represent that Millie Moon Luxury Diapers provide hours of absorbency, leak protection, and are suitable for prolonged contact with infants’ skin, every size of the diapers contains a defect that results in leaks, poor absorbency and severe skin reactions—rashes, blisters, redness, peeling, bleeding and “burn-like injuries”—that in some cases require medical treatment.  

According to the complaint, the packaging for the diapers features prominent representations that the products offer “12 hour absorbency,” and displays Dermatest and Oeko-Tex Standard 100 certification marks and claims that the diapers are “dermatologically tested.” Per the case, these representations communicate to reasonable consumers that the diapers are safe and suitable for their essential function, namely absorbing and containing waste while maintaining safe contact with babies’ skin.  

However, the lawsuit highlights that parents have reported Millie Moon diapers that leak, fail, and leave babies with “damp” clothing. More troublingly, the filing continues, parents have described serious infant skin reactions that improved when they ceased using the diapers at issue and returned when they resumed use.

“Others report that infants who had worn the Products without incident developed severe reactions after a later purchase,” the complaint adds. “These reports concern the very performance and skin-safety characteristics Defendants emphasize to induce consumers to purchase the Products.”

The class action complaint contends that the defendants knew or should have known of the “widespread and dangerous” diaper defect from a litany of consumer complaints, reviews on retailers’ websites, United States Consumer Product Safety Commission (CPSC) reports, media coverage and more, but chose to continue selling the diapers without disclosing the alleged defect.

The filing shares that consumers first reported their infants experiencing severe skin reactions to the CPSC as early as September 2025 and notes that the volume of complaints increased “substantially” in 2026. Moreover, the onslaught of complaints prompted a May 2026 news report from FOX19 in Cincinnati that relayed accounts from parents in Illinois, Alabama, Pennsylvania and Oklahoma concerning the dangerous skin reactions and chemical burns they observed, the suit says.

Parents determined that the skin reactions were more severe than ordinary diaper rashes and have said that the reactions are concentrated along the diapers’ leg and waist edges, closures and other areas that are held against a baby’s skin, the filing relays.   

“These accounts repeatedly describe similar experiences: the onset of skin irritation while using the Products, unsuccessful efforts to treat the irritation while continuing use, and improvement after discontinuing the Products or switching brands,” the lawsuit states.

The complaint says that additional reporting in September 2026 prompted Zuru to issue a public statement in which the company said there had been no changes to the diapers’ materials or formulation. Zuru also claimed it hadn’t identified any contamination, manufacturing problems or performance issues to warrant a recall, the case adds.

The Millie Moon Luxury Diapers class action lawsuit seeks to cover all individuals who, while in the United States and within the applicable statute of limitations, purchased one or more of the Millie Moon Luxury Diapers at issue.

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