Safety is our number one priority. Curiosity Corner Sensory Dough bears the UKCA mark and complies with all necessary safety requirements. Some of our natural products and everyday household items will not have the UKCA mark due to the nature of the products. We advise constant adult supervision with these products and checks of wear and tear prior to use, taking particular care to ensure there are no loose parts that may pose a hazard. Sensory dough is made from food grade ingredients, and while it does contain natural preservatives, we recommend a shelf life of 6 months. All of our products are intended for use for children over 36 Months.