How do you make slime out of just shampoo?
3 Method 3 of 3: Using Shampoo and Toothpaste
Squeeze some 2-in-1 shampoo into a mixing bowl. The 2-in-1 combo shampoos seem to work the best.
Add in some toothpaste.
Stir the two together with a spoon.
Adjust the consistency, if needed.
Play with the slime.