Gently stir to mix in the colour. It's okay if the food colouring leaves dots of colour in your mixture and doesn't mix in completely. It all combines nicely when you knead the slime.
Add cornstarch to the bowl.
Stir the ingredients together with a spoon, mixing as much as you can. When you can't stir anymore, scoop up the slime and mix it together with your hands. Continue kneading the slime until you've created a soft slime.
If the slime is really sticky, add more cornstarch. If the slime is too playdough like, add 1/2 teaspoon more conditioner at a time until it smooths out. Keep kneading until you're happy with the consistency.Your slime without glue is complete!