Water based colours are water-soluble artificial colours used for solid soap, liquid soap and water-based products like shampoos and bath foams.
The water based colours are very concentrated - the more you put in, the stronger the colour!
Because water-based colours don't sink to the bottom when mixed with liquids, they are the best choice for liquid products that have a low viscosity. These liquid colours are not light sensitive and do not discolour your sink or bath. They can easily keep without fading for 7 years in an airtight container; just don’t store them in direct sunlight. They’re best stored in a dry and dark place.