Question: how to make slime with shampoo and nothing else?
Answer: Squeeze some thick shampoo into a bowl. You can use any type of shampoo you want, but thicker shampoos work better. ... 
Stir in some body wash, if desired. ... 
Stir in some salt until the shampoo thickens. ... 
Freeze the shampoo for 15 minutes. ... 
Play with the slime.