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How to Make Slime With Contact Solution

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The slime craze continues and so many people are having fun making slime! Not only is slime fun to make – but kids will love stretching and squishing it. You’ve probably heard of all the slime fails. Well you’ve come to the right place for an easy slime recipe. Our favorite slime recipe is made with contact lens solution. It’s the easiest we’ve tried and without borax. So you won’t have to worry about slime fails with this one! Be sure to read the full post and tips below on how to make slime with contact solution!

How to make slime with contact solution

How to Make Slime With Contact Solution

There are a number of different slime activators you can use to “transform” your glue mixture into slime. Contact lens solution is our favorite activator. You can also replace this for saline solution, but just make sure that that they contain  boric acid and sodium borate.

Why is boric acid important for slime? 

Boric acid is made from borax and similarly liquid starch contains sodium tetraborate which is also made from borax. Typically all activators have some derivative of borax. However, we prefer using the contact lens solution as it’s easier to use and more widely available (liquid starch is not available in Canada and Borax is not available in the UK).

This Renu Fresh Contact Lens Solution is one of the recommended brands we suggest since it contains both boric acid and sodium borate.

Slime with contact solution

Ingredients for How to Make Slime With Contact Solution

This easy 3 ingredient recipe is such a popular one! If you haven’t seen our Unicorn Slime made with it, head over to watch the video on how it’s done!

Only 3 ingredients are needed: 

1. 1 Bottle of Elmer’s Glue (6 oz) – we like to buy the gallon size and then measure out for savings. If you want to get a similar effect to the photos in this post, you’ll need to buy Elmer’s glitter glue and review our Unicorn slime recipe.

We recommend Elmers as it has been tested and is quality glue. Do not substitute any ingredients as your slime may not work. 

2. Baking Soda (1/2 teaspoon)

3.  1½ TBSP of Contact Lens Solution – Renu Fresh or Equate are both good brands which contain Boric Acid and Sodium Borate. Do not substitute for other brands.

4. (Optional) – Add 2 TBSP of water (up to 1/4 cup) if you’d like a stretchier slime.

5. (Optional) – extra glitter

Safety Tips: Adults only should make the slime and handle all chemicals. Do not substitute any ingredients in our slime recipes. If you have sensitive skin, wear gloves while playing with the slime. Always wash hands before and after use.  If you notice any skin irritation discontinue use immediately. See the bottom of the post for more safety precautions.

 

Steps for How to Make Slime With Contact Solution

1. Get a bowl to mix your slime ingredients in.

2. Pour your entire 6 oz Elmer’s Glitter glue into the bowl.

Bottle of Glitter Glue

3. Add your 1/2 teaspoon of baking soda and mix in thoroughly. Also add 2 TBSP or more of water here (up to 1/4 cup) if you want a stretchier slime.

Baking Soda add to Slime

5. Slowly add in your contact lens solution (reminder: your contact lens solution should contain boric acid or your slime will not form). Add it in slowly and mix if possible so that you can adjust and ensure you do not add too much. We like to add a few teaspoons at a time and then mix. Knead and mix thoroughly before adding more as you do not want to add too much or your slime will get too hard. You may not need the full amount so take this step slowly.

6.  Now mix until your slime forms and begins to harden. Take it out and knead, knead, knead. You may be surprised how much you need to knead to really make the slime form. If it’s not the desirable consistency keep kneading. If you find it to still be too sticky, add a little bit of lotion or baby oil to your hands.

slime contact solution

Watch our Unicorn Slime tutorial video here before you get started!

You can print the full recipe off here: 

Contact Solution Slime
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5 from 8 votes

How to Make Slime With Contact Solution

Ingredients

  • 1 Bottle of Elmer's Glue
  • 1/2 teaspoon Baking Soda
  • TBSP of Contact Lens Solution
  • 1 TBSP Optional - Add 2 TBSP to up to 1/2 CUP of water if you'd like a stretchier slime.
  • Optional - Add in extra glitter if desired

Instructions

  1. Get a bowl to mix your slime ingredients in.
  2. Pour your entire 6 oz Elmer’s Glitter glue into the bowl.
  3. Add your baking soda and mix in thoroughly. Also add 1 TBSP or more (up to 1/2 cup) of water here if you want a stretchier slime.

  4. Slowly add in your contact lens solution (reminder: your contact lens solution should contain boric acid or your slime will not form). Add it in slowly and mix if possible so that you can adjust and ensure you do not add too much. You may not need the full amount so take this step slowly. 
  5. Now mix until your slime forms and begins to harden. Take it out and knead, knead, knead. You may be surprised how much you need to knead to really make the slime form. If it’s not the desirable consistency keep kneading. If you find it to still be too sticky, add a little bit of lotion or baby oil to your hands. 

Nutrition Information

Slime Safety & Precautions

Note: Making slime is a science experiment and safety precautions should still be made when creating slime. By making this slime, you agree to our site terms which you can read here.

  • Adults should handle any chemicals and products
  • Adults should make the slime
  • Always read and follow the labels of products used. If contact lens solution is accidentally ingested, seek medical attention immediately.
  • This project is not suitable for children under 4.
  • Slime should not be placed in the mouth. Always wash hands before and after playing with the slime.
  • If you notice any skin irritation, discontinue use immediately. If you have sensitive skin, wear gloves while making and playing with the slime.
  • Slime is a science experiment and should be made and played with in moderation. Do not allow children to make their own slime and do not play with slime for an extended period of time.

We hope this easy to follow recipe on how to make slime with contact solution has been helpful!

Other Slime Recipes to Try

Head over to our Unicorn Slime page to see how you can turn this into Unicorn Slime!

Unicorn Slime Recipe

Make Fluffy Slime which has a different texture and is fun to play with! See our Fluffy Slime Recipe.

Fluffy Slime

See how we turned these 4 slimes into Galaxy Slime! This one is really fun to mix!

Slime Galaxy Colors

63 comments on “How to Make Slime With Contact Solution”

  1. Can I put homemade salin solution in slime. I was going to make saline solution it’s just a little salt boiled in some water I’m going to make this with preschoolers I would like it to be chemical free. 

  2. How much slime does this make? Wanting to make it for a class party! 

  3. how can we make this strechier?

    • Add more water (just try a tablespoon at a time) and less contact solution. Add your contact solution in slowly and then knead as much as you can. Then only add in 1/2 teaspoon at a time until it’s not sticky but as stretchy as you’d like it to be.


  4. Thank you so much for the tips on the contact lenses solution! We tried with one solution and the slime couldn’t form. Then I googled and came to your site where you specifically mentioned that the contact lenses solution must contain sodium borate and boric acid. We changed the solution and it worked! Thank you so much!


  5. This slime was perfect!???

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