DIY Slime Recipes Without Borax: 8 Safe Kids Variations

By Emily Watson · October 1, 2026

Slime remains the most popular kids' craft for good reason: it's tactile, customizable, and endlessly entertaining. These 8 recipes avoid borax entirely, using safer alternatives that still produce satisfying textures.

Why Avoid Borax?

Borax (sodium tetraborate) can cause skin irritation, chemical burns with prolonged contact, and is dangerous if ingested. While many slime recipes use it, the alternatives below produce excellent results without the risk.

8 Borax-Free Slime Recipes

1. Contact Lens Solution Slime (The Classic)

Ingredients: 1/2 cup white glue, 1/2 cup water, 1/2 tsp baking soda, 1 tbsp contact lens solution (must contain boric acid)
Method: Mix glue and water. Add baking soda, stir. Add contact lens solution slowly, stirring until it pulls away from the bowl. Knead for 2 minutes.

2. Fluffy Slime

Ingredients: Same as #1 plus 2-3 cups shaving cream
Method: Follow recipe #1, but fold in shaving cream before adding activator. More cream = fluffier slime. This creates a cloud-like texture that kids love.

3. Cornstarch Slime (Oobleck)

Ingredients: 2 cups cornstarch, 1 cup water, food coloring
Method: Mix slowly — it's a non-Newtonian fluid that acts solid under pressure and liquid at rest. No chemical reaction needed!

Slime Science

Type	Activator	Texture	Shelf Life
Classic	Contact lens solution	Stretchy, smooth	2 weeks
Fluffy	Contact lens + shaving cream	Soft, cloud-like	1 week
Oobleck	None (physical)	Solid/liquid	Until dry
Clear	Contact lens solution	Transparent, stretchy	2 weeks