Easy 4-ingredient Fluffy Slime

My kids are crazy for slime. And they’re clearly not alone! A few weeks ago we made a gorgeous batch of 3-ingredient glitter slime, and today we’re sharing how to make fluffy slime. If you’re on the slime train, there’s a good chance you’ve heard of fluffy slime, and it’s so easy to make. The difference between slime and fluffy slime is that fluffy slime feels like marshmallows. It’s bouncy, puffy, and, well, fluffy!

Super Easy Fluffy Slime

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How to Make Fluffy Slime

We’ve been making slime for years (take a look in the book, TinkerLab: A Hands-on Guide for Little Inventors or click here our original recipe!), and even at ages 7 and 9 they are still nuts about this stretchy magical material. What is it about slime? Well, it’s a sensory material at invites children (and adults) to tap into the sense of touch in a pretty amazing way. The texture is playful and stretchy and encourages children to invent, build, sculpt, play, and even relax. My two played with slime for an hour the other day and they didn’t want to stop.

Fluffy slime ingredients _ TinkerLab

Fluffy Slime Ingredients

Shaving Cream – 3 cups (750 ml) (<<this brand works!)

Elmer’s School Glue – 1/2 cup (120 ml) or a 4 ounce bottle. We love this glue. If your kids love making slime, splurge for the gallon!

Baking Soda – 1 teaspoon (5 ml)

Contact Solution with boric acid as an ingredient – 1 tablespoon (15 ml) (<< this brand works!)

Steps for Fluffy Slime

Step 1: Add shaving cream to a bowl. Don’t worry about exact amounts. This recipe is forgiving and a little more or less will be fine.

Step 2: Add Elmer’s School Glue to the Bowl

Step 3: Add baking soda to the bowl.

Step 4: Mix everything together

Step 5: Add 1 tablespoon (15 ml) contact solution to the bowl. Mix it all together!

Make Fluffy Slime

Step 1: Add 3 cups (750 ml) shaving cream to a bowl. Don’t worry about exact amounts. This recipe is forgiving. 4 cups (1000 ml) would be fine, too.

Step 2: Add 1/2 cup (120 ml) Elmer’s School Glue to the Bowl

Step 3: Add 1 teaspoon (5 ml) baking soda to the bowl.

Step 4: Mix everything together

Step 5: Add 1 tablespoon (15 ml) contact solution to the bowl.

Mix it all together! See the next set of photos to see how it comes together in about a minute!

Mixing Fluffy Slime

Once the slime comes together, remove it from the bowl to knead and stretch it with your hands for a few minutes. It will be sticky at first, but it becomes non-sticky and pliable pretty quickly.

Play with your slime!

Slime Safety Tips and Recommendations

  • When playing with slime, if you’re concerned about it getting on your furniture, be sure to cover the table with oil cloth or a non-porous table covering.
  • Always supervise children when making and playing with slime.
  • Slime is not a food – do not allow children to eat slime. Always wash hands after using slime.

For more sensory activities, see our list of 30+ sensory activities here.

30 Sensory Activities That Kids will Love to Explore


  1. I just made four batches of the fluffy slime using what you posted and I must say that this is the happiest Ive been with making slime using other people’s recipes. Your fluffy slime recipe made awesome fluffy slime and my kids and I love it!!! I’ll definitely be bookmarking your website. Thanks again

  2. Quick and easy method and I found all the ingredients at home , thanks so much for making a boring day so interesting.๐Ÿ˜˜

  3. This is my first attempt at slime and it worked! Talk to me about storing slime. How long does this last? Plastic bag ok? Thanks!

    • Wonderful news! I’m happy to hear that the recipe worked for you. As you suggest, we recommend storing in a plastic bag for a few days, sometimes longer. ๐Ÿ™‚

      • I have been looking at the comments and this slime sounds awsome I ‘ m trying asap

  4. The list of ingredients has glue first so I did that instead of following instructions. Didnโ€™t turn out properly (however theyโ€™re still having fun with it). If you could reorganize your list above the instructions that would be helpful for those who donโ€™t read all the way through. Lol

  5. This is the best recipe ever. I tried a ton of fluffy slime recipes and yours is the best. ๐Ÿ‘Œ๐Ÿ‘Œ awesomeness

  6. Ok so I tried making this as a gift for my son and it sucked I followed the recipe exactly and it didnโ€™t form anywhere near slime. I was extremely upset as I was not able to provide a gift for my son. I think that maybe change the recipe idk. But I do know one thing I will not be using anymore of your recipes.

    • It worked for me! Mabye you went wrong somewhere…What was wrong with the slime? If it was too sticky/ runny, add more baking soda and contact solution. If it was too hard you added to much baking soda/ contact solution. You could either try making it again, or microwave it for 30 secs or so and then knead it some lotion to soften it up a bit

  7. My 4 year old loved this! Can you add food coloring? We used a metallic colored glue the first time. Definitely making more.

    • We didn’t try it with this recipe, but you should be able to add food coloring or liquid watercolor ๐Ÿ™‚ I bet it was gorgeous with metallic glue.

  8. I made so e of it and it was so fluffy if I had all the glue in the world and everything else I needed I would make so much of that slime!๐Ÿ˜ธ๐Ÿ˜ธ๐Ÿ˜ธ๐Ÿ˜ธ

  9. This is the best recipe ever. I tried a ton of fluffy slime recipes and yours is the best. ๐Ÿ‘Œ๐Ÿ‘Œ awesomeness

  10. is it worth buying the ingredients like does is it turn exactly like the picture or its not worth spending money on something that does not work and just make my mom mad at me does turn like REAL slime ?

    • Rachelle is right. I did as her tutorial did and it worked! however I am not sure if “similar” components will be successful. because I’m not a chemist ^ _ ^ Now my kid is sitting at home- making my products. And the purpose of me coming back here is to thank Rachelle.
      thank you!

  11. Hi, I made this slime and put it in a container. It went hard after like 3 days. Hope I can get some more glue to make this again. What did I do wrong: where it’s stored?? Help

    • The shaving foam can lose its fluffiness after playing with it, so it won’t stay fluffy for more than a day or so, and at that point it turns into regular slime. We generally store ours in a zip-up baggie or plastic container. Maybe there was air in your container?

  12. I think so… I’ll try making some more slime when covid is over and storing it in a baggie with no air. Thank u so much!

  13. Second time making this recipe with my grand daughter (master slime maker), fluffy, stretchy and fun! We add gold glitter for the WOW!

  14. Hey, my slime turned out AMAZING!! This is the best website and I’ll make sure to always use it. Do you have any pro-tips to keep the slime good and how long do you think the slime will last and thats its good from the pro-tips?

    Thank you,
    Chloe Napoli

    • I’m so glad you enjoyed this recipe! The shaving foam will eventually “unfluff” so this recipe will last a day or two.

  15. Hello, my name is Gonzalo

    Do you know how to make the slime last longer? After 2 weeks my slime went back to being glue. That made me very sad because it was so cute ๐Ÿ™

    • Hi Gonzalo, This slime doesn’t last very long in its fluffy state, unfortunately. You could try adding more shaving cream to refresh it.

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