P04 Hidden hazards: prevalence of food allergens in paediatric leave-on skincare products in the UK.

Abstract

The prevalence of food allergy is growing among children in the UK. There is increasing evidence suggesting a link between epicutaneous exposure to food proteins and subsequent sensitisation, particularly in those with atopic dermatitis. Skincare products including creams and emollients, widely-used in paediatric populations, may inadvertently contribute to allergen exposure when containing food-derived ingredients. This study investigates the prevalence of food protein allergens in paediatric leave-on skincare products available in the UK. A cross-sectional review was conducted on 130 skincare products marketed for children across three major online retailers: Amazon, Boots, and Lloyds Pharmacy. Ingredient lists were screened for the presence of food allergens, including the 4 major food allergens as defined by UK legislation. Allergenic components were classified by type (e.g. oils, extracts), and descriptive statistical analysis was performed. Of the 130 products assessed, 68 (52.3%) contained at least one food-derived allergen. A total of 102 allergenic ingredients were identified, with almond oil (Prunus Amygdalus Dulcis) and oat flour (Avena Sativa) being the most common. Oil-based allergens accounted for the majority (49%) of identified ingredients. Notably, products sold through Amazon had a higher prevalence of allergens compared to those sold by Lloyds Pharmacy. A significant proportion of paediatric skincare products in the UK contain food allergens, posing potential risks of epicutaneous sensitisation in children, particularly those with compromised skin barriers such as atopic dermatitis. These findings underscore the need for stricter ingredient scrutiny when recommending skincare products to reduce allergen exposure during early life.