How to make non-toxic slime that kids will love using Simpli Starch®

Making homemade slime or gak is a fun, safe activity to be done at home that all children can enjoy. Why pay high retail prices for pre-made slime or play dough for your kids, with unknown ingredients, when you can make it at home so easily with Simpli Starch? Children have almost as much fun making the slime with Simpli Starch as they do playing with it! Our Simpli Starch slime is quick, easy, and inexpensive, taking only a few minutes to make, but will entertain your kids for much longer. With Simpli Starch and a few other household ingredients, you will be amazed at the quality of kids-safe slime you can make. Your kids will love the tactile learning experience of playing with the slime, and for budding, young scientists, making slime offers many educational opportunities as a great STEM project. Children learn to measure and follow recipes, and begin to understand how chemical reactions turn liquids into solids and other states of matter. All you have to do is Simpli get started!

All Things Needed (Ingredients):

  • ½ Cup Elmer's School Glue
  • ¼ Cup room temperature water (To combine with glue)
  • ½ Cup room temperature water (To combine with Simpli Starch®)
  • 2 teaspoons Simpli Starch®
  • 3 teaspoons baking soda
  • 2 teaspoons contact lens solution


  1. In a large bowl, mix ½ cup of Elmer’s School glue with ¼ cup of room temperature water. Mix very well until fully combined and it appears like runny glue. 
  2. In a separate smaller bowl, mix ½ cup of water with 2 teaspoons of Simpli Starch. This will create your liquid starch mixture. Stir very well until Simpli Starch is fully dissolved in the water. 
  3. Add the Simpli Starch liquid starch mixture to the glue mixture in the larger bowl. Keep stirring.
  4. Add 3 teaspoons of baking soda into the larger bowl mixture.
  5. Add 2 teaspoons of contact lens solution to the larger bowl mixture. 
  6. Now comes the fun part! Start mixing with a spoon really well until all ingredients are fully combined. The mixture will start to thicken and will begin sticking to the spoon as you mix in circles. 
  7. Once the slime starts to stick to the spoon, pick it up with your hands and start kneading the slime over and over again to stiffen. Expect to knead the slime for at least 5 minutes to achieve best results. Enjoy!
Prep Time: 15min
Tags: crafts