All Crayola and Silly Putty products have been evaluated by an independent toxicologist and found to contain no known toxic substances in sufficient quantities to be harmful to the human body, even if ingested or inhaled.

What happens when you eat Silly Putty?

Severe health problems, yes. It can accumulate in your stomach and intestines then mix with the liquid in those organs. Once it mixes it naturally self dries. After it dries you now have 1 possibly 2 large hardened lumps that could reach the size of a softball or larger depending on the amount eaten.

What is Silly Putty made of?

Silly Putty is made primarily from silicone and color pigments. Silly Putty was discovered in 1943 by James Wright and introduced to the public in 1950 by Peter Hodgson. Crayola acquired the exclusive manufacturing rights to Silly Putty in 1977.