Hello, you can mix it with water at room temperature. Using heat will help it dissolve into the water faster. But it is not necessary to get clear shampoo. Adjust the viscosity It is recommended that after mixing, leave it for 1-2 days to see the natural thickening of the formula first. If it is not thick enough can add salt In a small amount, try at 0.5%. If the viscosity is insufficient, consider using
EasyThick or
SugarThick