Our go-to slime recipe uses contact lens solution. It’s the simplest one we’ve tested, and it contains no borax. That means you won’t need to worry about this slime failing! Be sure to read the complete post and tips below for making slime with contact solution!
RELATED: Fluffy Slime Recipe
You can choose from several slime activators to “turn” your glue mixture into contact solution slime. Our preferred activator is contact lens solution. Saline solution can also be used instead, but be sure it containsboric acid and sodium borate.
Supplies Needed
This simple 3 ingredient recipe is incredibly popular!
You only need 3 ingredients:
- 1 Bottle of Elmer’s Glue (6 oz) – for better value, we prefer purchasing the gallon size and measuring what is needed – if you have a bigger bottle, you can use 3/4 cup of glue. To achieve an effect like the photos in this post, purchase Elmer’s glitter glueand check out our Unicorn slime recipe.
We suggest using Elmers because it has been tested and is a high-quality glue. Using different ingredients could cause the slime not to work.
- Baking Soda – 1/2 teaspoon
- 1½ TBSP ofContact Lens Solution – Renu Fresh includes Boric Acid and Sodium Borate. Avoid replacing it with another brand. Before purchasing, read the label to confirm it contains the correct ingredients.
- 1/4 cup of water (optional)- Water is not essential, but it helps make the slime stretchier, so we recommend mixing in up to 1/4 cup of water.
Watch the Video Tutorial
Steps for Making Slime With Contact Solution
1. Choose a bowl in which to combine your slime ingredients.
2. Empty the full 6 oz bottle of Elmer’s Glitter glue into the bowl (or measure 3/4 cup of glue from a larger bottle).
3. Sprinkle in 1/2 teaspoon of baking soda, then stir well.
For stretchier slime, add as much as 1/4 cup of water.
5. Gradually pour in the contact lens solution
Reminder: the contact lens solution must contain boric acid, otherwise your slime will not form.
Pour it in little by little and stir as you go, allowing you to adjust the mixture and avoid adding too much.
We usually begin with 1 tablespoon and stir it in before gradually adding the remainder.
Before adding more, knead and combine the mixture thoroughly; too much solution can make the slime overly firm.
You might not require the entire quantity, so proceed gradually.
6. Stir until the slime comes together and starts to firm up.
Remove it from the bowl and knead it repeatedly. You may be amazed by how much kneading is needed for the slime to fully form. At this stage, it will be quite sticky, particularly if water was added. Continue kneading and stretching it until the stickiness decreases.
If the texture is not quite right, continue kneading. Add only a small amount of contact solution, one teaspoon at a time, so the slime does not become too firm.
Should it remain excessively sticky, apply a small amount of lotion or baby oil to your hands.
Why does boric acid matter for slime?
Boric acid comes from borax, and liquid starch likewise includes sodium tetraborate, which is derived from borax as well. In general, every activator contains some type of borax derivative. Still, we favor contact lens solution because it is simpler to use and easier to find (liquid starch cannot be purchased in Canada, while Borax is unavailable in the UK).
This Renu Fresh Contact Lens Solution is among the brands we recommend because it includes both boric acid and sodium borate.
Print the complete recipe here:
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Choose a bowl in which to combine your slime ingredients.
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Empty the full 6 oz of Elmer’s Glitter glue into the bowl.
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Stir in the baking soda until it is well combined. If you prefer stretchier slime, add as much as 1/4 cup of water at this stage.
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Gradually pour in the contact lens solution (remember: it must contain boric acid or the slime will not come together). Add it little by little and stir as you go, allowing you to control the amount and avoid adding too much. You might not require all of it, so proceed slowly.
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Continue stirring until the slime develops and starts to firm up. Remove it from the bowl and knead, knead, knead. You may be amazed by how much kneading is needed for the slime to fully form. If the texture is not right, continue kneading. Should it remain overly sticky, apply a small amount of lotion or baby oil to your hands.
Slime Safety & Precautions
Note: Creating slime is a science experiment, so proper safety measures should be followed. By making this slime, you agree to our site terms, which you can read here.
- Adults should manage all chemicals and supplies
- Adults should prepare the slime
- Read and follow the instructions on every product used. If contact lens solution is swallowed accidentally, obtain medical assistance right away.
- This activity is unsuitable for children younger than 4.
- Do not put slime in your mouth. Wash your hands before and after playing with the slime.
- If any skin irritation occurs, stop using it immediately. Those with sensitive skin should wear gloves while preparing and handling the slime.
- Slime is a scientific activity that should be created and enjoyed in moderation. Do not let children make slime without supervision, and avoid playing with it for long periods.
We hope this simple recipe for making slime with contact solution has been useful!
Explore more of our favorite slime recipes:
Additional Slime Recipes
Visit ourUnicorn Slimepage to learn how to transform this into Unicorn Slime!
Try making Fluffy Slime, which offers a unique texture and is enjoyable to play with! Check out our Fluffy Slime Recipe.
Discover how we transformed these 4 slimes into Galaxy Slime! This version is especially fun to combine!
