In a nutshell, yes, slime is perfectly safe for most kids.
Besides Borax, the two most common activators used in slime making are liquid starch (Sta-Flo) which contains sodium tetraborate and saline solution which contains boric acid. So essentially the active ingredient in all these activators is the same.
If ingested, it can irritate the gastrointestinal tract leading to stomach upset, vomiting, diarrhea, or other GI distress.
“However, larger quantities of slime (depending on the ingredients) may cause nausea, vomiting, stomach aches, diarrhea, or other serious symptoms.” With this in mind, it’s best to err on the side of caution and contact the Poison Control Center or your pediatrician at once, especially because there have been reports …
Is Elmer’s Magical Liquid safe to use and nontoxic? Yes! Similar to our school glues, Elmer’s Magical Liquid is certified by the Arts & Creative Materials Institute, Inc. (ACMI) as nontoxic and child-friendly.
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