Introduction: Liquid laundry detergent capsules contain concentrated liquid laundry detergent in a water-soluble polyvinyl alcohol membrane. Objective: To review 4652 exposures reported to the United Kingdom National Poisons Information Service (NPIS) and to assess the impact of regulatory changes on potential toxicity. Methods: Telephone enquiries to the NPIS and returned questionnaires for these products were analyzed for the period January 2008 to December 2018. Results: Data on 4652 exposures were reported by telephone or questionnaire, of which 95.4% involved children aged 5 years. Overall, 1738 of 4594 patients remained asymptomatic (Poisoning Severity Score [PSS] 0), 2729 developed minor (PSS 1) features, 107 suffered moderate features (PSS 2), 19 were graded as severe (PSS 3) and one died. Ingestion was involved in most exposures (n ¼ 4175): vomiting occurred in 46.5%, coughing occurred in 4.3% and central nervous system depression in 3.2%. Nine (0.2%) children were intubated and ventilated. The eye was exposed in 646 cases: 371 (59.8%) suffered conjunctivitis or eye irritation and 21 (3.4%) had keratitis/corneal damage, which persisted in one patient for 9 d. The skin was involved in 364 cases; in 127 (35.5%) minor dermal features developed including erythema, irritation and rash. The most commonly reported features in the 127 cases with PSS !2 were vomiting (n ¼ 75), stridor (n ¼ 34), CNS depression (n ¼ 22), keratitis/corneal damage (n ¼ 21), coughing (n ¼ 18), conjunctivitis (n ¼ 13), hypersalivation (n ¼ 12), foaming from the mouth (n ¼ 11) and hypoxemia (n ¼ 11). However, respiratory features (stridor, hypoxemia, bronchospasm, respiratory distress, dyspnea, pulmonary aspiration and tachypnea) were the reason for grading 56 of 127 cases as PSS !2. Conclusions: This large data set of 4652 exposures is reassuring in that 97.2% of exposures resulted in no or only minor features, only 107 patients suffered moderate features (PSS 2) and 19 severe (PSS 3) features; one patient died.